From: Simon Arlott <simon@fire.lp0.eu>
Date: Thu, 26 Apr 2007 07:38:04 +0000 (-0700)
Subject: usbatm: Detect usb device shutdown and ignore failed urbs
X-Git-Tag: v2.6.22-rc1~1117^2~14
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d5e1dd40bd5ced457be178e4f0b1267a3df2142;p=platform%2Fkernel%2Flinux-3.10.git

usbatm: Detect usb device shutdown and ignore failed urbs

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 <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 746d30ff..b3f779f 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -274,6 +274,9 @@ static void usbatm_complete(struct urb *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);