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ASoC: Add a sanity check before using dai driver name 

The dai driver's name is allowed to be NULL. So add a sanity check for
that.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reported-by: Donglin Peng <dolinux.peng@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeffy Chen 2017-08-24 12:40:17 +08:00 committed by Mark Brown
parent 4958471b0d
commit 6a6dafda93
1 changed files with 2 additions and 1 deletions
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3
sound/soc/soc-core.c
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@ -1029,7 +1029,8 @@ struct snd_soc_dai *snd_soc_find_dai(
continue;
list_for_each_entry(dai, &component->dai_list, list) {
if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)
&& strcmp(dai->driver->name, dlc->dai_name))
&& (!dai->driver->name
|| strcmp(dai->driver->name, dlc->dai_name)))
continue;
return dai;