can: esd_usb2: cancel urb on -EPIPE and -EPROTO
authorMartin Kelly <mkelly@xevo.com>
Tue, 5 Dec 2017 19:15:48 +0000 (11:15 -0800)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Fri, 8 Dec 2017 09:45:11 +0000 (10:45 +0100)
commit7a31ced3de06e9878e4f9c3abe8f87d9344d8144
tree2cc9b82d8a258e6bd77e01110072b9eb70e63dd4
parentbd352e1adfe0d02d3ea7c8e3fb19183dc317e679
can: esd_usb2: 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/esd_usb2.c