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ASoC: dapm - Fix check for codec context in dapm_power_widgets(). 

Fixes a NULL pointer dereference in dapm_power_widgets() if the dapm context
has no codec.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Liam Girdwood 2012-01-16 15:23:31 +00:00 committed by Mark Brown
parent f7cb8a4be1
commit e7c80e2a8b
1 changed files with 1 additions and 1 deletions
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2
sound/soc/soc-dapm.c
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@ -1426,7 +1426,7 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
dapm->target_bias_level = SND_SOC_BIAS_ON;
break;
case SND_SOC_DAPM_STREAM_STOP:
if (dapm->codec->active)
if (dapm->codec && dapm->codec->active)
dapm->target_bias_level = SND_SOC_BIAS_ON;
else
dapm->target_bias_level = SND_SOC_BIAS_STANDBY;