[alsa-devel] [PATCH] ASoC: dapm - Fix check for codec context in dapm_power_widgets().
Liam Girdwood
lrg at ti.com
Mon Jan 16 16:23:31 CET 2012
Fixes a NULL pointer dereference in dapm_power_widgets() if the dapm context
has no codec.
Signed-off-by: Liam Girdwood <lrg at ti.com>
---
sound/soc/soc-dapm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 3ad1f59..1f55ded 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -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;
--
1.7.5.4
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