From: Brian Rogers <brian@xyzw.org>
Date: Wed, 22 Sep 2010 11:06:43 +0000 (-0300)
Subject: V4L/DVB: ir-core: Fix null dereferences in the protocols sysfs interface
X-Git-Tag: v2.6.36-rc8~32^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a08c7c68f702e2a2797a4035b6c0a756c4886c26;p=pandora-kernel.git

V4L/DVB: ir-core: Fix null dereferences in the protocols sysfs interface

For some cards, ir_dev->props and ir_dev->raw are both NULL. These cards are
using built-in IR decoding instead of raw, and can't easily be made to switch
protocols.

So upon reading /sys/class/rc/rc?/protocols on such a card, return 'builtin' as
the supported and enabled protocol. Return -EINVAL on any attempts to change
the protocol. And most important of all, don't crash.

Signed-off-by: Brian Rogers <brian@xyzw.org>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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