From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Fri, 6 Dec 2013 23:10:35 +0000 (+0400)
Subject: can: ems_usb: fix urb leaks on failure paths
X-Git-Tag: v3.13-rc5~30^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1c31f1d057130cc63e72a09189410d169db7ecf;p=pandora-kernel.git

can: ems_usb: fix urb leaks on failure paths

There are a couple failure paths where urb leaks.
Is spare code within ems_usb_start_xmit(),
usb_free_urb() should be used to deallocate urb instead of usb_unanchor_urb().
In ems_usb_start() there is no usb_free_urb() if usb_submit_urb() fails.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Sebastian Haas <dev@sebastianhaas.info>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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