linux-kernel - [PATCH 2/2] usbatm: Detect usb device shutdown and ignore failed urbs.

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Message-ID: <45DCBC26.1050308@simon.arlott.org.uk>
Date:	Wed, 21 Feb 2007 21:39:50 +0000
From:	Simon Arlott <simon@...ott.org>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] 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.

Signed-off-by: Simon Arlott <simon@...e.lp0.eu>
---
 drivers/usb/atm/usbatm.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 83cea01..1f5faee 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -274,6 +274,10 @@ static void usbatm_complete(struct urb *
 			(!(channel->usbatm->flags & UDSL_IGNORE_EILSEQ) ||
 			 urb->status != -EILSEQ ))
 	{
+		/* the module/device has probably been removed */
+		if (urb->status == -ESHUTDOWN)
+			return;
+
 		if (printk_ratelimit())
 			atm_warn(channel->usbatm, "%s: urb 0x%p failed (%d)!\n",
 				__func__, urb, urb->status);
-- 
1.4.3.1

-- 
Simon Arlott

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