[PATCH] usbcore: drop reference to bus on allocation error

A recent patch introduced this reference counting leak.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>


===== drivers/usb/core/usb.c 1.293 vs edited =====

drivers/usb/core/usb.c

@@ -765,6 +765,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port)
 
 	if (dev->bus->op->allocate)
 		if (dev->bus->op->allocate(dev)) {
+			usb_bus_put(bus);
 			kfree(dev);
 			return NULL;
 		}