shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-04-05 12:43:09 +09:00
Code Issues Packages Projects Releases Wiki Activity

can: usb_8dev: cancel urb on -EPIPE and -EPROTO

Browse Source 
commit 12147edc43 upstream.

In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).

This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.

Signed-off-by: Martin Kelly <mkelly@xevo.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kelly
2017-12-05 11:15:50 -08:00
committed by Greg Kroah-Hartman
parent 421b93cb0f
commit 67464fbca3
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/can/usb/usb_8dev.c
View File

@@ -524,6 +524,8 @@ static void usb_8dev_read_bulk_callback(struct urb *urb)
break;
case -ENOENT:
case -EPIPE:
case -EPROTO:
case -ESHUTDOWN:
return;