From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Tue, 18 Jun 2013 12:33:58 +0000 (+0200)
Subject: can: usb_8dev: unregister netdev before free()ing
X-Git-Tag: v3.10~13^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4afe2156eb639e563d6ef0c2706b66ea400348b2;p=pandora-kernel.git

can: usb_8dev: unregister netdev before free()ing

The usb_8dev hardware has problems on some xhci USB hosts. The driver fails to
read the firmware revision in the probe function. This leads to the following
Oops:

    [ 3356.635912] kernel BUG at net/core/dev.c:5701!

The driver tries to free the netdev, which has already been registered, without
unregistering it.

This patch fixes the problem by unregistering the netdev in the error path.

Reported-by: Michael Olbrich <m.olbrich@pengutronix.de>
Reviewed-by: Bernd Krumboeck <krumboeck@universalnet.at>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

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