From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Wed, 3 Jul 2013 19:17:34 +0000 (-0300)
Subject: hdpvr: fix iteration over uninitialized lists in hdpvr_probe()
X-Git-Tag: v3.2.52~99
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9eb9bfa030d8a49d54f0e4ae671e33f406bbbeff;p=pandora-kernel.git

hdpvr: fix iteration over uninitialized lists in hdpvr_probe()

commit 2e923a0527ac439e135b9961e58d3acd876bba10 upstream.

free_buff_list and rec_buff_list are initialized in the middle of hdpvr_probe(),
but if something bad happens before that, error handling code calls hdpvr_delete(),
which contains iteration over the lists (via hdpvr_free_buffers()).
The patch moves the lists initialization to the beginning and by the way fixes
goto label in error handling of registering videodev.
Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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