From: Stephane Grosjean <s.grosjean@peak-system.com>
Date: Tue, 20 May 2014 09:38:56 +0000 (+0200)
Subject: can: peak_pci: prevent use after free at netdev removal
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~146^2~4^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b5a958cf4df3a5cd578b861471e62138f55c85e;p=pandora-kernel.git

can: peak_pci: prevent use after free at netdev removal

As remarked by Christopher R. Baker in his post at

http://marc.info/?l=linux-can&m=139707295706465&w=2

there's a possibility for an use after free condition at device removal.

This simplified patch introduces an additional variable to prevent the issue.
Thanks for catching this.

Cc: linux-stable <stable@vger.kernel.org>
Reported-by: Christopher R. Baker <cbaker@rec.ri.cmu.edu>
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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