usb hpusbscsi driver fixes:

	- special case for REQUEST_SENSE
	- reset handling won't work properly -> disabled
	- error reporting corrected

drivers/usb/hpusbscsi.c

@@ -283,7 +283,12 @@ static int hpusbscsi_scsi_queuecommand (Scsi_Cmnd *srb, scsi_callback callback)
 	/* Now we need to decide which callback to give to the urb we send the command with */
 
 	if (!srb->bufflen) {
+		if (srb->cmnd[0] == REQUEST_SENSE){
+			hpusbscsi->current_data_pipe = usb_rcvbulkpipe(hpusbscsi->dev, hpusbscsi->ep_in);
+			usb_callback = request_sense_callback;
+		} else {
 			usb_callback = simple_command_callback;
+		}
 	} else {
         	if (likely(srb->use_sg)) {
 			usb_callback = scatter_gather_callback;
@@ -341,8 +346,8 @@ static int hpusbscsi_scsi_host_reset (Scsi_Cmnd *srb)
 	struct hpusbscsi* hpusbscsi = (struct hpusbscsi*)(srb->host->hostdata[0]);
 
 	printk(KERN_DEBUG"SCSI reset requested.\n");
-	usb_reset_device(hpusbscsi->dev);
-	printk(KERN_DEBUG"SCSI reset completed.\n");
+	//usb_reset_device(hpusbscsi->dev);
+	//printk(KERN_DEBUG"SCSI reset completed.\n");
 	hpusbscsi->state = HP_STATE_FREE;
 
 	return 0;
@@ -382,7 +387,7 @@ DEBUG("Getting status byte %d \n",hpusbscsi->scsi_state_byte);
 		return;
 	}
 	hpusbscsi->srb->result &= SCSI_ERR_MASK;
-	hpusbscsi->srb->result |= hpusbscsi->scsi_state_byte<<1;
+	hpusbscsi->srb->result |= hpusbscsi->scsi_state_byte;
 
 	if (hpusbscsi->scallback != NULL && hpusbscsi->state == HP_STATE_WAIT)
 		/* we do a callback to the scsi layer if and only if all data has been transfered */
@@ -427,6 +432,32 @@ static void simple_command_callback(struct urb *u)
 	}
 }
 
+static void request_sense_callback (struct urb *u)
+{
+	struct hpusbscsi * hpusbscsi = (struct hpusbscsi *)u->context;
+
+	if (unlikely(u->status<0)) {
+		handle_usb_error(hpusbscsi);
+		return;
+        }
+
+	FILL_BULK_URB(
+		u,
+		hpusbscsi->dev,
+		hpusbscsi->current_data_pipe,
+		hpusbscsi->srb->sense_buffer,
+		SCSI_SENSE_BUFFERSIZE,
+		simple_done,
+		hpusbscsi
+	);
+
+	if (unlikely(0 > usb_submit_urb(u, GFP_ATOMIC))) {
+		handle_usb_error(hpusbscsi);
+		return;
+	}
+	hpusbscsi->state = HP_STATE_WORKING;
+}
+
 static void scatter_gather_callback(struct urb *u)
 {
 	struct hpusbscsi * hpusbscsi = (struct hpusbscsi *)u->context;

drivers/usb/hpusbscsi.h

@@ -51,6 +51,7 @@ static int hpusbscsi_scsi_detect (struct SHT * sht);
 static void simple_command_callback(struct urb *u);
 static void scatter_gather_callback(struct urb *u);
 static void simple_payload_callback (struct urb *u);
+static void request_sense_callback (struct urb *u);
 static void control_interrupt_callback (struct urb *u);
 static void simple_done (struct urb *u);
 static int hpusbscsi_scsi_queuecommand (Scsi_Cmnd *srb, scsi_callback callback);