[patch 5/7] usbatm: Detect usb device shutdown and ignore failed urbs

From: Simon Arlott <[email protected]>

Detect usb device shutdown and ignore failed urbs.  This happens when the
driver is unloaded or the device is unplugged.

I'm not sure what other urb statuses should be ignored, and the warning
message doesn't need to be shown when the module is unloaded or the device
is removed.

Signed-off-by: Simon Arlott <[email protected]>
Cc: Duncan Sands <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 drivers/usb/atm/usbatm.c |    3 +++
 1 file changed, 3 insertions(+)

diff -puN drivers/usb/atm/usbatm.c~usbatm-detect-usb-device-shutdown-and-ignore-failed-urbs drivers/usb/atm/usbatm.c
--- a/drivers/usb/atm/usbatm.c~usbatm-detect-usb-device-shutdown-and-ignore-failed-urbs
+++ a/drivers/usb/atm/usbatm.c
@@ -274,6 +274,9 @@ static void usbatm_complete(struct urb *
 			(!(channel->usbatm->flags & UDSL_IGNORE_EILSEQ) ||
 			 urb->status != -EILSEQ ))
 	{
+		if (urb->status == -ESHUTDOWN)
+			return;
+
 		if (printk_ratelimit())
 			atm_warn(channel->usbatm, "%s: urb 0x%p failed (%d)!\n",
 				__func__, urb, urb->status);
_

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