From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 10 Jul 2009 10:27:31 +0000 (+0200)
Subject: ALSA: hda_intel: more strict alc880_parse_auto_config dig_nid checking
X-Git-Tag: v2.6.31-rc4~32^2~2^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=9d30937accf2c01e8b0bd59787409a7348cbbcb7;hp=9d30937accf2c01e8b0bd59787409a7348cbbcb7

ALSA: hda_intel: more strict alc880_parse_auto_config dig_nid checking

On some IbexPeak systems with ALC889A errors like "azx_get_response
timeout, switching to polling mode: last cmd=0xaf9f000b" are produced,
because non-existent codec #10 is wrongly accessed.

The problem is that snd_hda_get_connections() returns out-of-range result
for NID 0x1c (something like 0xf8f9 or 0xffff).

This patch adds a check to alc880_parse_auto_config() to avoid using
of this out-of-range NIDs. A better fix maybe to improve
snd_hda_get_connections() routine to check for valid NID ranges if
NIDs are expected as result.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---