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>
git-mirror · Jan 16, 2012 · e7c80e2 · e7c80e2
1 parent f7cb8a4
commit e7c80e2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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;