]> git.baikalelectronics.ru Git - kernel.git/commit
can: kvaser_usb: cancel urb on -EPIPE and -EPROTO
authorMartin Kelly <mkelly@xevo.com>
Tue, 5 Dec 2017 19:15:49 +0000 (11:15 -0800)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Fri, 8 Dec 2017 09:45:11 +0000 (10:45 +0100)
commit2418d9e28a6ada6f60e1fe5462ca8bb032fdf0ff
treefd4a4304e341feb1d63897091bdcb302263c4ac6
parenteaf4ec4f9dc8a5ef624ffec7d11aa0a90f40d963
can: kvaser_usb: cancel urb on -EPIPE and -EPROTO

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>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/usb/kvaser_usb.c