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ASoC: Only deregister AC97 dev if it's name was not "AC97" 

The commit 14fa43f53f ("ASoC: Only
register AC97 bus if it's not done already") added a condition for
calling of soc_ac97_dev_register() but not added for calling of
soc_ac97_dev_unregister().  This patch adds same condition for
soc_ac97_dev_unregister().  Without this fix, kernel crashes when
unloading an asoc driver.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Atsushi Nemoto 2009-03-16 23:26:20 +09:00 committed by Mark Brown
parent 852fd9e50f
commit d2314e0e27
1 changed files with 2 additions and 1 deletions
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3
sound/soc/soc-core.c
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@ -1432,7 +1432,8 @@ void snd_soc_free_pcms(struct snd_soc_device *socdev)
#ifdef CONFIG_SND_SOC_AC97_BUS
for (i = 0; i < codec->num_dai; i++) {
codec_dai = &codec->dai[i];
if (codec_dai->ac97_control && codec->ac97) {
if (codec_dai->ac97_control && codec->ac97 &&
strcmp(codec->name, "AC97") != 0) {
soc_ac97_dev_unregister(codec);
goto free_card;
}