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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2009-03-16 23:26:20 +0900
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-03-17 13:59:47 +0000
commitd2314e0e27566f8830ebed3587cc049e07e6a4ee (patch)
tree14f27f22f0725f123c8882fe463db414cb3e5fda /sound/soc/soc-core.c
parentASoC: Each PXA AC97 DAI needs a separate ops (diff)
downloadlinux-dev-d2314e0e27566f8830ebed3587cc049e07e6a4ee.tar.xz
linux-dev-d2314e0e27566f8830ebed3587cc049e07e6a4ee.zip
ASoC: Only deregister AC97 dev if it's name was not "AC97"
The commit 14fa43f53ff3a9c3d8b9662574b7369812a31a97 ("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>
Diffstat (limited to 'sound/soc/soc-core.c')
-rw-r--r--sound/soc/soc-core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 16518329f6b2..6e710f705a74 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -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;
}