From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 2 Dec 2011 14:29:12 +0000 (+0100)
Subject: ALSA: hda/realtek - Fix Oops in alc_mux_select()
X-Git-Tag: v3.2-rc5~7^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cce4aa378a049f4275416ee6302dd24f37b289df;p=pandora-kernel.git

ALSA: hda/realtek - Fix Oops in alc_mux_select()

When no imux is available (e.g. a single capture source),
alc_auto_init_input_src() may trigger an Oops due to the access to -1.
Add a proper zero-check to avoid it.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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