ASoC: Lock the CODEC in PXA external jack controls

[mv-sheeva.git] / sound / soc / pxa / tosa.c

diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index 73d0edd8ded9de053db82b27c60433fe1a7b8686..7b983f935454159d0a3569d6f747285231cbc6ae 100644 (file)
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -81,8 +81,13 @@ static int tosa_startup(struct snd_pcm_substream *substream)
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_codec *codec = rtd->codec;
 
+       mutex_lock(&codec->mutex);
+
        /* check the jack status at stream startup */
        tosa_ext_control(codec);
+
+       mutex_unlock(&codec->mutex);
+
        return 0;
 }