Merge kroah.com:/home/greg/linux/BK/bleed-2.6

into kroah.com:/home/greg/linux/BK/usb-2.6

drivers/usb/class/usblp.c

@@ -226,11 +226,21 @@ extern struct usb_driver usblp_driver;
 
 static int usblp_ctrl_msg(struct usblp *usblp, int request, int type, int dir, int recip, int value, void *buf, int len)
 {
-	int retval = usb_control_msg(usblp->dev,
+	int retval;
+	int index = usblp->ifnum;
+
+	/* High byte has the interface index.
+	   Low byte has the alternate setting.
+	 */
+	if ((request == USBLP_REQ_GET_ID) && (type == USB_TYPE_CLASS)) {
+	  index = (usblp->ifnum<<8)|usblp->protocol[usblp->current_protocol].alt_setting;
+	}
+
+	retval = usb_control_msg(usblp->dev,
 		dir ? usb_rcvctrlpipe(usblp->dev, 0) : usb_sndctrlpipe(usblp->dev, 0),
-		request, type | dir | recip, value, usblp->ifnum, buf, len, USBLP_WRITE_TIMEOUT);
-	dbg("usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d len: %#x result: %d",
-		request, !!dir, recip, value, len, retval);
+		request, type | dir | recip, value, index, buf, len, USBLP_WRITE_TIMEOUT);
+	dbg("usblp_control_msg: rq: 0x%02x dir: %d recip: %d value: %d idx: %d len: %#x result: %d",
+		request, !!dir, recip, value, index, len, retval);
 	return retval < 0 ? retval : 0;
 }
 
@@ -440,6 +450,9 @@ static int usblp_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		goto done;
 	}
 
+	dbg("usblp_ioctl: cmd=0x%x (%c nr=%d len=%d dir=%d)", cmd, _IOC_TYPE(cmd),
+		_IOC_NR(cmd), _IOC_SIZE(cmd), _IOC_DIR(cmd) );
+
 	if (_IOC_TYPE(cmd) == 'P')	/* new-style ioctl number */
 
 		switch (_IOC_NR(cmd)) {

drivers/usb/core/Makefile

@@ -3,7 +3,7 @@
 #
 
 usbcore-objs	:= usb.o hub.o hcd.o urb.o message.o \
-			config.o file.o buffer.o driverfs.o
+			config.o file.o buffer.o sysfs.o
 
 ifeq ($(CONFIG_PCI),y)
 	usbcore-objs	+= hcd-pci.o

drivers/usb/core/config.c

@@ -465,23 +465,24 @@ int usb_get_configuration(struct usb_device *dev)
 		goto err2;
 	memset(dev->rawdescriptors, 0, length);
 
-	buffer = kmalloc(8, GFP_KERNEL);
+	buffer = kmalloc(USB_DT_CONFIG_SIZE, GFP_KERNEL);
 	if (!buffer)
 		goto err2;
 	desc = (struct usb_config_descriptor *)buffer;
 
 	for (cfgno = 0; cfgno < ncfg; cfgno++) {
-		/* We grab the first 8 bytes so we know how long the whole */
-		/* configuration is */
+		/* We grab just the first descriptor so we know how long
+		 * the whole configuration is */
 		result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
-		    buffer, 8);
+		    buffer, USB_DT_CONFIG_SIZE);
 		if (result < 0) {
 			dev_err(ddev, "unable to read config index %d "
-			    "descriptor\n", cfgno);
+			    "descriptor/%s\n", cfgno, "start");
 			goto err;
-		} else if (result < 8) {
+		} else if (result < 4) {
 			dev_err(ddev, "config index %d descriptor too short "
-			    "(expected %i, got %i)\n", cfgno, 8, result);
+			    "(expected %i, got %i)\n", cfgno,
+			    USB_DT_CONFIG_SIZE, result);
 			result = -EINVAL;
 			goto err;
 		}
@@ -498,7 +499,7 @@ int usb_get_configuration(struct usb_device *dev)
 		    bigbuffer, length);
 		if (result < 0) {
 			dev_err(ddev, "unable to read config index %d "
-			    "descriptor\n", cfgno);
+			    "descriptor/%s\n", cfgno, "all");
 			kfree(bigbuffer);
 			goto err;
 		}

drivers/usb/core/hcd.h

@@ -243,13 +243,13 @@ extern void usb_hc_died (struct usb_hcd *hcd);
 extern struct usb_device *usb_alloc_dev(struct usb_device *parent,
 					struct usb_bus *, unsigned port);
 extern int usb_new_device(struct usb_device *dev);
-extern void usb_choose_address(struct usb_device *dev);
 extern void usb_disconnect(struct usb_device **);
+extern void usb_choose_address(struct usb_device *dev);
+extern void usb_release_address(struct usb_device *dev);
 
 /* exported to hub driver ONLY to support usb_reset_device () */
 extern int usb_get_configuration(struct usb_device *dev);
 extern void usb_destroy_configuration(struct usb_device *dev);
-extern int usb_set_address(struct usb_device *dev);
 
 /* use these only before the device's address has been set */
 #define usb_snddefctrl(dev)		((PIPE_CONTROL << 30))

drivers/usb/core/message.c

@@ -1252,7 +1252,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration)
 					ret);
 				continue;
 			}
-			usb_create_driverfs_intf_files (intf);
+			usb_create_sysfs_intf_files (intf);
 		}
 	}
 

drivers/usb/core/driverfs.c → drivers/usb/core/sysfs.c

 /*
- * drivers/usb/core/driverfs.c
+ * drivers/usb/core/sysfs.c
  *
  * (C) Copyright 2002 David Brownell
  * (C) Copyright 2002 Greg Kroah-Hartman
  * (C) Copyright 2002 IBM Corp.
  *
- * All of the driverfs file attributes for usb devices and interfaces.
+ * All of the sysfs file attributes for usb devices and interfaces.
  *
  */
 
@@ -163,7 +163,7 @@ usb_descriptor_attr (bDeviceProtocol, "%02x\n")
 usb_descriptor_attr (bNumConfigurations, "%d\n")
 
 
-void usb_create_driverfs_dev_files (struct usb_device *udev)
+void usb_create_sysfs_dev_files (struct usb_device *udev)
 {
 	struct device *dev = &udev->dev;
 
@@ -217,7 +217,7 @@ usb_intf_attr (bInterfaceSubClass, "%02x\n")
 usb_intf_attr (bInterfaceProtocol, "%02x\n")
 usb_intf_attr (iInterface, "%02x\n")
 
-void usb_create_driverfs_intf_files (struct usb_interface *intf)
+void usb_create_sysfs_intf_files (struct usb_interface *intf)
 {
 	device_create_file (&intf->dev, &dev_attr_bInterfaceNumber);
 	device_create_file (&intf->dev, &dev_attr_bAlternateSetting);

drivers/usb/core/usb.c

@@ -998,12 +998,10 @@ void usb_disconnect(struct usb_device **pdev)
 	 */
 	usb_disable_device(dev, 0);
 
-	dev_dbg (&dev->dev, "unregistering device\n");
 	/* Free the device number and remove the /proc/bus/usb entry */
-	if (dev->devnum > 0) {
-		clear_bit(dev->devnum, dev->bus->devmap.devicemap);
-		usbfs_remove_device(dev);
-	}
+	dev_dbg (&dev->dev, "unregistering device\n");
+	usb_release_address(dev);
+	usbfs_remove_device(dev);
 	up(&dev->serialize);
 	device_unregister(&dev->dev);
 }
@@ -1038,24 +1036,23 @@ void usb_choose_address(struct usb_device *dev)
 	}
 }
 
-
-// hub-only!! ... and only exported for reset/reinit path.
-// otherwise used internally, for usb_new_device()
-int usb_set_address(struct usb_device *dev)
+/**
+ * usb_release_address - deallocate device address (usbcore-internal)
+ * @dev: newly removed device
+ *
+ * Removes and deallocates the address assigned to a device.
+ * Only hub drivers (but not virtual root hub drivers for host
+ * controllers) should ever call this.
+ */
+void usb_release_address(struct usb_device *dev)
 {
-	int retval;
-
-	if (dev->devnum == 0)
-		return -EINVAL;
-	if (dev->state != USB_STATE_DEFAULT && dev->state != USB_STATE_ADDRESS)
-		return -EINVAL;
-	retval = usb_control_msg(dev, usb_snddefctrl(dev), USB_REQ_SET_ADDRESS,
-		0, dev->devnum, 0, NULL, 0, HZ * USB_CTRL_SET_TIMEOUT);
-	if (retval == 0)
-		dev->state = USB_STATE_ADDRESS;
-	return retval;
+	if (dev->devnum > 0) {
+		clear_bit(dev->devnum, dev->bus->devmap.devicemap);
+		dev->devnum = -1;
+	}
 }
 
+
 static inline void usb_show_string(struct usb_device *dev, char *id, int index)
 {
 	char *buf;
@@ -1069,6 +1066,37 @@ static inline void usb_show_string(struct usb_device *dev, char *id, int index)
 	kfree(buf);
 }
 
+static int usb_choose_configuration(struct usb_device *dev)
+{
+	int c, i;
+
+	c = dev->config[0].desc.bConfigurationValue;
+	if (dev->descriptor.bNumConfigurations != 1) {
+		for (i = 0; i < dev->descriptor.bNumConfigurations; i++) {
+			struct usb_interface_descriptor	*desc;
+
+			/* heuristic:  Linux is more likely to have class
+			 * drivers, so avoid vendor-specific interfaces.
+			 */
+			desc = &dev->config[i].intf_cache[0]
+					->altsetting->desc;
+			if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC)
+				continue;
+			/* COMM/2/all is CDC ACM, except 0xff is MSFT RNDIS */
+			if (desc->bInterfaceClass == USB_CLASS_COMM
+					&& desc->bInterfaceSubClass == 2
+					&& desc->bInterfaceProtocol == 0xff)
+				continue;
+			c = dev->config[i].desc.bConfigurationValue;
+			break;
+		}
+		dev_info(&dev->dev,
+			"configuration #%d chosen from %d choices\n",
+			c, dev->descriptor.bNumConfigurations);
+	}
+	return c;
+}
+
 /*
  * usb_new_device - perform initial device setup (usbcore-internal)
  * @dev: newly addressed device (in ADDRESS state)
@@ -1090,8 +1118,7 @@ static inline void usb_show_string(struct usb_device *dev, char *id, int index)
 int usb_new_device(struct usb_device *dev)
 {
 	int err;
-	int i;
-	int config;
+	int c;
 
 	err = usb_get_configuration(dev);
 	if (err < 0) {
@@ -1119,41 +1146,16 @@ int usb_new_device(struct usb_device *dev)
 		dev_err(&dev->dev, "can't device_add, error %d\n", err);
 		goto fail;
 	}
-	usb_create_driverfs_dev_files (dev);
+	usb_create_sysfs_dev_files (dev);
 
 	/* choose and set the configuration. that registers the interfaces
 	 * with the driver core, and lets usb device drivers bind to them.
 	 * NOTE:  should interact with hub power budgeting.
 	 */
-	config = dev->config[0].desc.bConfigurationValue;
-	if (dev->descriptor.bNumConfigurations != 1) {
-		for (i = 0; i < dev->descriptor.bNumConfigurations; i++) {
-			struct usb_interface_descriptor	*desc;
-
-			/* heuristic:  Linux is more likely to have class
-			 * drivers, so avoid vendor-specific interfaces.
-			 */
-			desc = &dev->config[i].intf_cache[0]
-					->altsetting->desc;
-			if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC)
-				continue;
-			/* COMM/2/all is CDC ACM, except 0xff is MSFT RNDIS */
-			if (desc->bInterfaceClass == USB_CLASS_COMM
-					&& desc->bInterfaceSubClass == 2
-					&& desc->bInterfaceProtocol == 0xff)
-				continue;
-			config = dev->config[i].desc.bConfigurationValue;
-			break;
-		}
-		dev_info(&dev->dev,
-			"configuration #%d chosen from %d choices\n",
-			config,
-			dev->descriptor.bNumConfigurations);
-	}
-	err = usb_set_configuration(dev, config);
+	c = usb_choose_configuration(dev);
+	err = usb_set_configuration(dev, c);
 	if (err) {
-		dev_err(&dev->dev, "can't set config #%d, error %d\n",
-			config, err);
+		dev_err(&dev->dev, "can't set config #%d, error %d\n", c, err);
 		device_del(&dev->dev);
 		goto fail;
 	}
@@ -1166,8 +1168,7 @@ int usb_new_device(struct usb_device *dev)
 	return 0;
 fail:
 	dev->state = USB_STATE_NOTATTACHED;
-	clear_bit(dev->devnum, dev->bus->devmap.devicemap);
-	dev->devnum = -1;
+	usb_release_address(dev);
 	usb_put_dev(dev);
 	return err;
 }

drivers/usb/core/usb.h

 /* Functions local to drivers/usb/core/ */
 
-extern void usb_create_driverfs_dev_files (struct usb_device *dev);
-extern void usb_create_driverfs_intf_files (struct usb_interface *intf);
+extern void usb_create_sysfs_dev_files (struct usb_device *dev);
+extern void usb_create_sysfs_intf_files (struct usb_interface *intf);
 extern int usb_probe_interface (struct device *dev);
 extern int usb_unbind_interface (struct device *dev);
 

drivers/usb/gadget/Kconfig

@@ -95,6 +95,7 @@ config USB_PXA2XX
 config USB_PXA2XX_SMALL
 	depends on USB_GADGET_PXA2XX
 	bool
+	default n if USB_ETH_RNDIS
 	default y if USB_ZERO
 	default y if USB_ETH
 	default y if USB_G_SERIAL

drivers/usb/gadget/epautoconf.c

@@ -96,7 +96,8 @@ ep_matches (
 				/* for now, avoid PXA "interrupt-in";
 				 * it's documented as never using DATA1.
 				 */
-				if (gadget_is_pxa (gadget))
+				if (gadget_is_pxa (gadget)
+						&& 'i' == tmp [1])
 					return 0;
 				break;
 			case USB_ENDPOINT_XFER_BULK:

drivers/usb/gadget/serial.c

@@ -154,14 +154,9 @@ do {									\
 
 #define GS_CLOSE_TIMEOUT		15
 
-/* debug macro */
+/* debug settings */
 #if G_SERIAL_DEBUG
 static int debug = G_SERIAL_DEBUG;
-#else
-static int debug = 0;
-#endif
-
-#if G_SERIAL_DEBUG
 
 #define gs_debug(format, arg...) \
 	do { if (debug) printk(KERN_DEBUG format, ## arg); } while(0)
@@ -598,8 +593,10 @@ MODULE_DESCRIPTION(GS_LONG_NAME);
 MODULE_AUTHOR("Al Borchers");
 MODULE_LICENSE("GPL");
 
+#if G_SERIAL_DEBUG
 MODULE_PARM(debug, "i");
 MODULE_PARM_DESC(debug, "Enable debugging, 0=off, 1=on");
+#endif
 
 MODULE_PARM(read_q_size, "i");
 MODULE_PARM_DESC(read_q_size, "Read request queue size, default=32");

drivers/usb/host/uhci-hcd.c

@@ -95,6 +95,10 @@ static kmem_cache_t *uhci_up_cachep;	/* urb_priv */
 static int uhci_get_current_frame_number(struct uhci_hcd *uhci);
 static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb);
 static void uhci_unlink_generic(struct uhci_hcd *uhci, struct urb *urb);
+static void uhci_remove_pending_urbps(struct uhci_hcd *uhci);
+static void uhci_finish_completion(struct usb_hcd *hcd, struct pt_regs *regs);
+static void uhci_free_pending_qhs(struct uhci_hcd *uhci);
+static void uhci_free_pending_tds(struct uhci_hcd *uhci);
 
 static void hc_state_transitions(struct uhci_hcd *uhci);
 
@@ -373,6 +377,7 @@ static void uhci_remove_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
 {
 	struct uhci_qh *pqh;
 	u32 newlink;
+	unsigned int age;
 
 	if (!qh)
 		return;
@@ -425,6 +430,12 @@ static void uhci_remove_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
 	list_del_init(&qh->urbp->queue_list);
 	qh->urbp = NULL;
 
+	age = uhci_get_current_frame_number(uhci);
+	if (age != uhci->qh_remove_age) {
+		uhci_free_pending_qhs(uhci);
+		uhci->qh_remove_age = age;
+	}
+
 	/* Check to see if the remove list is empty. Set the IOC bit */
 	/* to force an interrupt so we can remove the QH */
 	if (list_empty(&uhci->qh_remove_list))
@@ -628,6 +639,7 @@ static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb)
 {
 	struct list_head *head, *tmp;
 	struct urb_priv *urbp;
+	unsigned int age;
 
 	urbp = (struct urb_priv *)urb->hcpriv;
 	if (!urbp)
@@ -637,6 +649,12 @@ static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb)
 		dev_warn(uhci_dev(uhci), "urb %p still on uhci->urb_list "
 				"or uhci->remove_list!\n", urb);
 
+	age = uhci_get_current_frame_number(uhci);
+	if (age != uhci->td_remove_age) {
+		uhci_free_pending_tds(uhci);
+		uhci->td_remove_age = age;
+	}
+
 	/* Check to see if the remove list is empty. Set the IOC bit */
 	/* to force an interrupt so we can remove the TD's*/
 	if (list_empty(&uhci->td_remove_list))
@@ -1512,6 +1530,7 @@ static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
 	struct uhci_hcd *uhci = hcd_to_uhci(hcd);
 	unsigned long flags;
 	struct urb_priv *urbp;
+	unsigned int age;
 
 	spin_lock_irqsave(&uhci->schedule_lock, flags);
 	urbp = urb->hcpriv;
@@ -1521,6 +1540,12 @@ static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
 
 	uhci_unlink_generic(uhci, urb);
 
+	age = uhci_get_current_frame_number(uhci);
+	if (age != uhci->urb_remove_age) {
+		uhci_remove_pending_urbps(uhci);
+		uhci->urb_remove_age = age;
+	}
+
 	/* If we're the first, set the next interrupt bit */
 	if (list_empty(&uhci->urb_remove_list))
 		uhci_set_next_interrupt(uhci);
@@ -1590,6 +1615,12 @@ static void stall_callback(unsigned long ptr)
 	INIT_LIST_HEAD(&list);
 
 	spin_lock_irqsave(&uhci->schedule_lock, flags);
+	if (!list_empty(&uhci->urb_remove_list) &&
+	    uhci_get_current_frame_number(uhci) != uhci->urb_remove_age) {
+		uhci_remove_pending_urbps(uhci);
+		uhci_finish_completion(hcd, NULL);
+	}
+
 	head = &uhci->urb_list;
 	tmp = head->next;
 	while (tmp != head) {
@@ -1728,6 +1759,7 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd, struct pt_regs *regs)
 	unsigned int io_addr = uhci->io_addr;
 	unsigned short status;
 	struct list_head *tmp, *head;
+	unsigned int age;
 
 	/*
 	 * Read the interrupt status, and write it back to clear the
@@ -1758,11 +1790,20 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd, struct pt_regs *regs)
 
 	spin_lock(&uhci->schedule_lock);
 
-	uhci_free_pending_qhs(uhci);
-	uhci_free_pending_tds(uhci);
-	uhci_remove_pending_urbps(uhci);
-
-	uhci_clear_next_interrupt(uhci);
+	age = uhci_get_current_frame_number(uhci);
+	if (age != uhci->qh_remove_age)
+		uhci_free_pending_qhs(uhci);
+	if (age != uhci->td_remove_age)
+		uhci_free_pending_tds(uhci);
+	if (age != uhci->urb_remove_age)
+		uhci_remove_pending_urbps(uhci);
+
+	if (list_empty(&uhci->urb_remove_list) &&
+	    list_empty(&uhci->td_remove_list) &&
+	    list_empty(&uhci->qh_remove_list))
+		uhci_clear_next_interrupt(uhci);
+	else
+		uhci_set_next_interrupt(uhci);
 
 	/* Walk the list of pending URB's to see which ones completed */
 	head = &uhci->urb_list;

drivers/usb/host/uhci-hcd.h

@@ -357,12 +357,15 @@ struct uhci_hcd {
 
 	/* List of QH's that are done, but waiting to be unlinked (race) */
 	struct list_head qh_remove_list;	/* P: uhci->schedule_lock */
+	unsigned int qh_remove_age;		/* Age in frames */
 
 	/* List of TD's that are done, but waiting to be freed (race) */
 	struct list_head td_remove_list;	/* P: uhci->schedule_lock */
+	unsigned int td_remove_age;		/* Age in frames */
 
 	/* List of asynchronously unlinked URB's */
 	struct list_head urb_remove_list;	/* P: uhci->schedule_lock */
+	unsigned int urb_remove_age;		/* Age in frames */
 
 	/* List of URB's awaiting completion callback */
 	struct list_head complete_list;		/* P: uhci->schedule_lock */

drivers/usb/input/hiddev.c

@@ -232,7 +232,7 @@ static int hiddev_fasync(int fd, struct file *file, int on)
 static struct usb_class_driver hiddev_class;
 static void hiddev_cleanup(struct hiddev *hiddev)
 {
-	hiddev_table[hiddev->hid->minor] = NULL;
+	hiddev_table[hiddev->hid->minor - HIDDEV_MINOR_BASE] = NULL;
 	usb_deregister_dev(hiddev->hid->intf, &hiddev_class);
 	kfree(hiddev);
 }

drivers/usb/input/powermate.c

@@ -33,6 +33,7 @@
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/spinlock.h>
 #include <linux/usb.h>
 
 #define POWERMATE_VENDOR	0x077d	/* Griffin Technology, Inc. */
@@ -67,7 +68,7 @@ struct powermate_device {
 	dma_addr_t configcr_dma;
 	struct usb_device *udev;
 	struct input_dev input;
-	struct semaphore lock;
+	spinlock_t lock;
 	int static_brightness;
 	int pulse_speed;
 	int pulse_table;
@@ -116,7 +117,7 @@ static void powermate_irq(struct urb *urb, struct pt_regs *regs)
 		     __FUNCTION__, retval);
 }
 
-/* Decide if we need to issue a control message and do so. Must be called with pm->lock down */
+/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
 static void powermate_sync_state(struct powermate_device *pm)
 {
 	if (pm->requires_update == 0) 
@@ -194,19 +195,22 @@ static void powermate_sync_state(struct powermate_device *pm)
 static void powermate_config_complete(struct urb *urb, struct pt_regs *regs)
 {
 	struct powermate_device *pm = urb->context;
+	unsigned long flags;
 
 	if (urb->status)
 		printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
 	
-	down(&pm->lock);
+	spin_lock_irqsave(&pm->lock, flags);
 	powermate_sync_state(pm);
-	up(&pm->lock);
+	spin_unlock_irqrestore(&pm->lock, flags);
 }
 
 /* Set the LED up as described and begin the sync with the hardware if required */
 static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed, 
 				int pulse_table, int pulse_asleep, int pulse_awake)
 {
+	unsigned long flags;
+
 	if (pulse_speed < 0)
 		pulse_speed = 0;
 	if (pulse_table < 0)
@@ -219,7 +223,8 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
 	pulse_asleep = !!pulse_asleep;
 	pulse_awake = !!pulse_awake;
 
-	down(&pm->lock);
+
+	spin_lock_irqsave(&pm->lock, flags);
 
 	/* mark state updates which are required */
 	if (static_brightness != pm->static_brightness){
@@ -242,7 +247,7 @@ static void powermate_pulse_led(struct powermate_device *pm, int static_brightne
 
 	powermate_sync_state(pm);
    
-	up(&pm->lock);
+	spin_unlock_irqrestore(&pm->lock, flags);
 }
 
 /* Callback from the Input layer when an event arrives from userspace to configure the LED */
@@ -344,7 +349,7 @@ static int powermate_probe(struct usb_interface *intf, const struct usb_device_i
 		return -ENOMEM;
 	}
 
-	init_MUTEX(&pm->lock);
+	pm->lock = SPIN_LOCK_UNLOCKED;
 	init_input_dev(&pm->input);
 
 	/* get a handle to the interrupt data pipe */
@@ -411,7 +416,6 @@ static void powermate_disconnect(struct usb_interface *intf)
 
 	usb_set_intfdata(intf, NULL);
 	if (pm) {
-		down(&pm->lock);
 		pm->requires_update = 0;
 		usb_unlink_urb(pm->irq);
 		input_unregister_device(&pm->input);

drivers/usb/net/kaweth.c

@@ -1240,20 +1240,21 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length)
         init_waitqueue_head(&awd.wqh);
         awd.done = 0;
 
-        set_current_state(TASK_INTERRUPTIBLE);
         add_wait_queue(&awd.wqh, &wait);
         urb->context = &awd;
-        status = usb_submit_urb(urb, GFP_ATOMIC);
+        status = usb_submit_urb(urb, GFP_NOIO);
         if (status) {
                 // something went wrong
                 usb_free_urb(urb);
-                set_current_state(TASK_RUNNING);
                 remove_wait_queue(&awd.wqh, &wait);
                 return status;
         }
 
-	while (timeout && !awd.done)
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	while (timeout && !awd.done) {
 		timeout = schedule_timeout(timeout);
+		set_current_state(TASK_UNINTERRUPTIBLE);
+	}
 
         set_current_state(TASK_RUNNING);
         remove_wait_queue(&awd.wqh, &wait);

drivers/usb/net/pegasus.h

@@ -136,6 +136,7 @@ struct usb_eth_dev {
 #define	VENDOR_LANEED		0x056e
 #define	VENDOR_LINKSYS		0x066b
 #define	VENDOR_MELCO		0x0411
+#define	VENDOR_MICROSOFT	0x045e
 #define	VENDOR_MOBILITY		0x1342
 #define	VENDOR_NETGEAR		0x0846
 #define	VENDOR_OCT		0x0b39
@@ -265,6 +266,8 @@ PEGASUS_DEV( "MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0005,
 		DEFAULT_GPIO_RESET )
 PEGASUS_DEV( "MELCO/BUFFALO LUA2-TX", VENDOR_MELCO, 0x0009,
 		DEFAULT_GPIO_RESET | PEGASUS_II )
+PEGASUS_DEV( "Microsoft MN-110", VENDOR_MICROSOFT, 0x007a,
+		DEFAULT_GPIO_RESET | PEGASUS_II )
 PEGASUS_DEV( "NETGEAR FA101", VENDOR_NETGEAR, 0x1020,
 		DEFAULT_GPIO_RESET | PEGASUS_II )
 PEGASUS_DEV( "OCT Inc.", VENDOR_OCT, 0x0109,

drivers/usb/serial/Kconfig

@@ -314,8 +314,8 @@ config USB_SERIAL_KLSI
 	  module will be called kl5kusb105.
 
 config USB_SERIAL_KOBIL_SCT
-        tristate "USB KOBIL chipcard reader (EXPERIMENTAL)"
-        depends on USB_SERIAL && EXPERIMENTAL
+        tristate "USB KOBIL chipcard reader"
+        depends on USB_SERIAL
         ---help---
           Say Y here if you want to use one of the following KOBIL USB chipcard
           readers:

drivers/usb/serial/ftdi_sio.c

@@ -17,6 +17,9 @@
  * See http://ftdi-usb-sio.sourceforge.net for upto date testing info
  *	and extra documentation
  *
+ * (27/May/2004) Ian Abbott
+ *      Improved throttling code, mostly stolen from the WhiteHEAT driver.
+ *
  * (26/Mar/2004) Jan Capek
  *      Added PID's for ICD-U20/ICD-U40 - incircuit PIC debuggers from CCS Inc.
  *
@@ -584,6 +587,10 @@ static struct usb_driver ftdi_driver = {
 #define BUFSZ 512
 #define PKTSZ 64
 
+/* rx_flags */
+#define THROTTLED		0x01
+#define ACTUALLY_THROTTLED	0x02
+
 struct ftdi_private {
 	ftdi_chip_type_t chip_type;
 				/* type of the device, either SIO or FT8U232AM */
@@ -598,6 +605,8 @@ struct ftdi_private {
 	unsigned long last_dtr_rts;	/* saved modem control outputs */
         wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
  	char prev_status, diff_status;        /* Used for TIOCMIWAIT */
+	__u8 rx_flags;		/* receive state flags (throttling) */
+	spinlock_t rx_lock;	/* spinlock for receive state */
 
 	int force_baud;		/* if non-zero, force the baud rate to this value */
 	int force_rtscts;	/* if non-zero, force RTS-CTS to always be enabled */
@@ -625,6 +634,7 @@ static int  ftdi_write_room		(struct usb_serial_port *port);
 static int  ftdi_chars_in_buffer	(struct usb_serial_port *port);
 static void ftdi_write_bulk_callback	(struct urb *urb, struct pt_regs *regs);
 static void ftdi_read_bulk_callback	(struct urb *urb, struct pt_regs *regs);
+static void ftdi_process_read		(struct usb_serial_port *port);
 static void ftdi_set_termios		(struct usb_serial_port *port, struct termios * old);
 static int  ftdi_tiocmget               (struct usb_serial_port *port, struct file *file);
 static int  ftdi_tiocmset		(struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
@@ -1110,6 +1120,7 @@ static int ftdi_common_startup (struct usb_serial *serial)
 	}
 	memset(priv, 0, sizeof(*priv));
 
+	spin_lock_init(&priv->rx_lock);
         init_waitqueue_head(&priv->delta_msr_wait);
 	/* This will push the characters through immediately rather
 	   than queue a task to deliver them */
@@ -1273,8 +1284,8 @@ static void ftdi_shutdown (struct usb_serial *serial)
 	 */
 
 	if (priv) {
-		kfree(priv);
 		usb_set_serial_port_data(port, NULL);
+		kfree(priv);
 	}
 } /* ftdi_shutdown */
 
@@ -1284,6 +1295,7 @@ static int  ftdi_open (struct usb_serial_port *port, struct file *filp)
 	struct termios tmp_termios;
 	struct usb_device *dev = port->serial->dev;
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
 	
 	int result = 0;
 	char buf[1]; /* Needed for the usb_control_msg I think */
@@ -1317,6 +1329,11 @@ static int  ftdi_open (struct usb_serial_port *port, struct file *filp)
 		err("%s Error from RTS HIGH urb", __FUNCTION__);
 	}
 
+	/* Not throttled */
+	spin_lock_irqsave(&priv->rx_lock, flags);
+	priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
+	spin_unlock_irqrestore(&priv->rx_lock, flags);
+
 	/* Start reading from the device */
 	usb_fill_bulk_urb(port->read_urb, dev,
 		      usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
@@ -1370,7 +1387,12 @@ static void ftdi_close (struct usb_serial_port *port, struct file *filp)
 	/* shutdown our bulk read */
 	if (port->read_urb) {
 		if (usb_unlink_urb (port->read_urb) < 0) {
-			err("Error unlinking read urb");
+			/* Generally, this isn't an error.  If the previous
+			   read bulk callback occurred (or is about to occur)
+			   while the port was being closed or was throtted
+			   (and is still throttled), the read urb will not
+			   have been submitted. */
+			dbg("%s - failed to unlink read urb (generally not an error)", __FUNCTION__);
 		}
 	}
 } /* ftdi_close */
@@ -1546,13 +1568,6 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 	struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
 	struct tty_struct *tty;
 	struct ftdi_private *priv;
-	char error_flag;
-       	unsigned char *data = urb->transfer_buffer;
-
-	int i;
-	int result;
-	int need_flip;
-	int packet_offset;
 
 	if (urb->number_of_packets > 0) {
 		err("%s transfer_buffer_length %d actual_length %d number of packets %d",__FUNCTION__,
@@ -1560,7 +1575,7 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 		err("%s transfer_flags %x ", __FUNCTION__,urb->transfer_flags );
 	}
 
-	dbg("%s", __FUNCTION__);
+	dbg("%s - port %d", __FUNCTION__, port->number);
 
 	if (port->open_count <= 0)
 		return;
@@ -1572,6 +1587,14 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 	}
 
 	priv = usb_get_serial_port_data(port);
+	if (!priv) {
+		dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
+		return;
+	}
+
+	if (urb != port->read_urb) {
+		err("%s - Not my urb!", __FUNCTION__);
+	}
 
 	if (urb->status) {
 		/* This will happen at close every time so it is a dbg not an err */
@@ -1579,6 +1602,59 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 		return;
 	}
 
+	/* If throttled, delay receive processing until unthrottled. */
+	spin_lock(&priv->rx_lock);
+	if (priv->rx_flags & THROTTLED) {
+		dbg("Deferring read urb processing until unthrottled");
+		priv->rx_flags |= ACTUALLY_THROTTLED;
+		spin_unlock(&priv->rx_lock);
+		return;
+	}
+	spin_unlock(&priv->rx_lock);
+
+	ftdi_process_read(port);
+
+} /* ftdi_read_bulk_callback */
+
+
+static void ftdi_process_read (struct usb_serial_port *port)
+{ /* ftdi_process_read */
+	struct urb *urb;
+	struct tty_struct *tty;
+	struct ftdi_private *priv;
+	char error_flag;
+       	unsigned char *data;
+
+	int i;
+	int result;
+	int need_flip;
+	int packet_offset;
+
+	dbg("%s - port %d", __FUNCTION__, port->number);
+
+	if (port->open_count <= 0)
+		return;
+
+	tty = port->tty;
+	if (!tty) {
+		dbg("%s - bad tty pointer - exiting",__FUNCTION__);
+		return;
+	}
+
+	priv = usb_get_serial_port_data(port);
+	if (!priv) {
+		dbg("%s - bad port private data pointer - exiting", __FUNCTION__);
+		return;
+	}
+
+	urb = port->read_urb;
+	if (!urb) {
+		dbg("%s - bad read_urb pointer - exiting", __FUNCTION__);
+		return;
+	}
+
+	data = urb->transfer_buffer;
+
         /* The first two bytes of every read packet are status */
 	if (urb->actual_length > 2) {
 		usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
@@ -1683,7 +1759,7 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
 	}
 
 	return;
-} /* ftdi_read_bulk_callback */
+} /* ftdi_process_read */
 
 
 static void ftdi_break_ctl( struct usb_serial_port *port, int break_state )
@@ -2073,27 +2149,32 @@ static int ftdi_ioctl (struct usb_serial_port *port, struct file * file, unsigne
 
 static void ftdi_throttle (struct usb_serial_port *port)
 {
+	struct ftdi_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+
 	dbg("%s - port %d", __FUNCTION__, port->number);
-	usb_unlink_urb (port->read_urb);
+
+	spin_lock_irqsave(&priv->rx_lock, flags);
+	priv->rx_flags |= THROTTLED;
+	spin_unlock_irqrestore(&priv->rx_lock, flags);
 }
 
 
 static void ftdi_unthrottle (struct usb_serial_port *port)
 {
-	int result;
+	struct ftdi_private *priv = usb_get_serial_port_data(port);
+	int actually_throttled;
+	unsigned long flags;
 
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
-	port->read_urb->dev = port->serial->dev;
-
-	usb_fill_bulk_urb(port->read_urb, port->serial->dev, 
-		      usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
-		      port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
-		      ftdi_read_bulk_callback, port);
+	spin_lock_irqsave(&priv->rx_lock, flags);
+	actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
+	priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
+	spin_unlock_irqrestore(&priv->rx_lock, flags);
 
-	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
-	if (result)
-		err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
+	if (actually_throttled)
+		ftdi_process_read(port);
 }
 
 static int __init ftdi_init (void)

drivers/usb/serial/kobil_sct.c

@@ -21,6 +21,9 @@
  * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
  * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
  * 
+ * (21/05/2004) tw
+ *      Fix bug with P'n'P readers
+ *
  * (28/05/2003) tw
  *      Add support for KAAN SIM
  *
@@ -59,7 +62,7 @@
 #include "usb-serial.h"
 
 /* Version Information */
-#define DRIVER_VERSION "28/05/2003"
+#define DRIVER_VERSION "21/05/2004"
 #define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com"
 #define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
 
@@ -339,6 +342,12 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp)
 			);
 		dbg("%s - port %d Send reset_all_queues URB returns: %i", __FUNCTION__, port->number, result);
 	}
+	if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
+	    priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
+		// start reading (Adapter B 'cause PNP string)
+		result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC  ); 
+		dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
+	}
 
 	kfree(transfer_buffer);
 	return 0;
@@ -456,6 +465,11 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 	if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) || 
 	     ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4))) ) {
 		
+		// stop reading (except TWIN and KAAN SIM)
+		if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
+			usb_unlink_urb( port->interrupt_in_urb );
+		}
+
 		todo = priv->filled - priv->cur_pos;
 
 		while(todo > 0) {
@@ -463,25 +477,23 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 			length = (todo < 8) ? todo : 8;
 			// copy data to transfer buffer
 			memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length );
-			
-			usb_fill_bulk_urb( port->write_urb,
-					   port->serial->dev,
-					   usb_sndbulkpipe( port->serial->dev, priv->write_int_endpoint_address),
-					   port->write_urb->transfer_buffer,
-					   length,
-					   kobil_write_callback,
-					   port
+			usb_fill_int_urb( port->write_urb,
+					  port->serial->dev,
+					  usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address),
+					  port->write_urb->transfer_buffer,
+					  length,
+					  kobil_write_callback,
+					  port,
+					  8
 				);
 
 			priv->cur_pos = priv->cur_pos + length;
-			result = usb_submit_urb( port->write_urb, GFP_ATOMIC );
+			result = usb_submit_urb( port->write_urb, GFP_NOIO );
 			dbg("%s - port %d Send write URB returns: %i", __FUNCTION__, port->number, result);
 			todo = priv->filled - priv->cur_pos;
 
 			if (todo > 0) {
-				//mdelay(16);
-				set_current_state(TASK_UNINTERRUPTIBLE);
-				schedule_timeout(24 * HZ / 1000);
+				msleep(24);
 			}
 
 		} // end while
@@ -492,9 +504,14 @@ static int kobil_write (struct usb_serial_port *port, int from_user,
 		// someone sets the dev to 0 if the close method has been called
 		port->interrupt_in_urb->dev = port->serial->dev;
 		
-		// start reading
-		result = usb_submit_urb( port->interrupt_in_urb, GFP_ATOMIC ); 
-		dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
+		// start reading (except TWIN and KAAN SIM)
+		if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) || (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
+			// someone sets the dev to 0 if the close method has been called
+			port->interrupt_in_urb->dev = port->serial->dev;
+			
+			result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO ); 
+			dbg("%s - port %d Send read URB returns: %i", __FUNCTION__, port->number, result);
+		}
 	}
 	return count;
 }

drivers/usb/serial/visor.c

@@ -680,7 +680,7 @@ static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_i
 	char *string;
 	int retval = 0;
 	int i;
-	int num_ports;
+	int num_ports = 0;
 
 	dbg("%s", __FUNCTION__);
 
@@ -702,41 +702,50 @@ static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_i
 			__FUNCTION__, retval);
 		goto exit;
 	}
-		
-	connection_info = (struct visor_connection_info *)transfer_buffer;
-
-	le16_to_cpus(&connection_info->num_ports);
-	num_ports = connection_info->num_ports;
-	/* handle devices that report invalid stuff here */
-	if (num_ports > 2)
-		num_ports = 2;
-	dev_info(dev, "%s: Number of ports: %d\n", serial->type->name,
-		connection_info->num_ports);
 
-	for (i = 0; i < num_ports; ++i) {
-		switch (connection_info->connections[i].port_function_id) {
-			case VISOR_FUNCTION_GENERIC:
-				string = "Generic";
-				break;
-			case VISOR_FUNCTION_DEBUGGER:
-				string = "Debugger";
-				break;
-			case VISOR_FUNCTION_HOTSYNC:
-				string = "HotSync";
-				break;
-			case VISOR_FUNCTION_CONSOLE:
-				string = "Console";
-				break;
-			case VISOR_FUNCTION_REMOTE_FILE_SYS:
-				string = "Remote File System";
-				break;
-			default:
-				string = "unknown";
-				break;	
+	if (retval == sizeof(*connection_info)) {
+	        connection_info = (struct visor_connection_info *)transfer_buffer;
+
+		le16_to_cpus(&connection_info->num_ports);
+		num_ports = connection_info->num_ports;
+
+		for (i = 0; i < num_ports; ++i) {
+			switch (connection_info->connections[i].port_function_id) {
+				case VISOR_FUNCTION_GENERIC:
+					string = "Generic";
+					break;
+				case VISOR_FUNCTION_DEBUGGER:
+					string = "Debugger";
+					break;
+				case VISOR_FUNCTION_HOTSYNC:
+					string = "HotSync";
+					break;
+				case VISOR_FUNCTION_CONSOLE:
+					string = "Console";
+					break;
+				case VISOR_FUNCTION_REMOTE_FILE_SYS:
+					string = "Remote File System";
+					break;
+				default:
+					string = "unknown";
+					break;
+			}
+			dev_info(dev, "%s: port %d, is for %s use\n",
+				serial->type->name,
+				connection_info->connections[i].port, string);
 		}
-		dev_info(dev, "%s: port %d, is for %s use\n", serial->type->name,
-			 connection_info->connections[i].port, string);
 	}
+	/*
+	* Handle devices that report invalid stuff here.
+	*/
+	if (num_ports == 0 || num_ports > 2) {
+		dev_warn (dev, "%s: No valid connect info available\n",
+			serial->type->name);
+		num_ports = 2;
+	}
+  
+	dev_info(dev, "%s: Number of ports: %d\n", serial->type->name,
+		num_ports);
 
 	/*
 	 * save off our num_ports info so that we can use it in the
@@ -868,8 +877,7 @@ static int clie_3_5_startup (struct usb_serial *serial)
  
 static int treo_attach (struct usb_serial *serial)
 {
-	struct usb_serial_port *port;
-	int i;
+	struct usb_serial_port *swap_port;
 
 	/* Only do this endpoint hack for the Handspring devices with
 	 * interrupt in endpoints, which for now are the Treo devices. */
@@ -879,31 +887,28 @@ static int treo_attach (struct usb_serial *serial)
 
 	dbg("%s", __FUNCTION__);
 
-	/* Ok, this is pretty ugly, but these devices want to use the
-	 * interrupt endpoint as paired up with a bulk endpoint for a
-	 * "virtual serial port".  So let's force the endpoints to be
-	 * where we want them to be. */
-	for (i = serial->num_bulk_in; i < serial->num_ports; ++i) {
-		port = serial->port[i];
-		port->read_urb = serial->port[0]->read_urb;
-		port->bulk_in_endpointAddress = serial->port[0]->bulk_in_endpointAddress;
-		port->bulk_in_buffer = serial->port[0]->bulk_in_buffer;
-	}
-
-	for (i = serial->num_bulk_out; i < serial->num_ports; ++i) {
-		port = serial->port[i];
-		port->write_urb = serial->port[0]->write_urb;
-		port->bulk_out_size = serial->port[0]->bulk_out_size;
-		port->bulk_out_endpointAddress = serial->port[0]->bulk_out_endpointAddress;
-		port->bulk_out_buffer = serial->port[0]->bulk_out_buffer;
-	}
-
-	for (i = serial->num_interrupt_in; i < serial->num_ports; ++i) {
-		port = serial->port[i];
-		port->interrupt_in_urb = serial->port[0]->interrupt_in_urb;
-		port->interrupt_in_endpointAddress = serial->port[0]->interrupt_in_endpointAddress;
-		port->interrupt_in_buffer = serial->port[0]->interrupt_in_buffer;
-	}
+	/*
+	* It appears that Treos want to use the 1st interrupt endpoint to
+	* communicate with the 2nd bulk out endpoint, so let's swap the 1st
+	* and 2nd bulk in and interrupt endpoints.  Note that swapping the
+	* bulk out endpoints would break lots of apps that want to communicate
+	* on the second port.
+	*/
+#define COPY_PORT(dest, src)						\
+	dest->read_urb = src->read_urb;					\
+	dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;	\
+	dest->bulk_in_buffer = src->bulk_in_buffer;			\
+	dest->interrupt_in_urb = src->interrupt_in_urb;			\
+	dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress;	\
+	dest->interrupt_in_buffer = src->interrupt_in_buffer;
+
+	swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
+	if (!swap_port)
+		return -ENOMEM;
+	COPY_PORT(swap_port, serial->port[0]);
+	COPY_PORT(serial->port[0], serial->port[1]);
+	COPY_PORT(serial->port[1], swap_port);
+	kfree(swap_port);
 
 	return 0;
 }

drivers/usb/storage/transport.c

@@ -1112,8 +1112,7 @@ static int usb_stor_reset_common(struct us_data *us,
 
 	/* long wait for reset, so unlock to allow disconnects */
 	up(&us->dev_semaphore);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(HZ*6);
+	msleep(6000);
 	down(&us->dev_semaphore);
 	if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) {
 		US_DEBUGP("Reset interrupted by disconnect\n");