1 files changed, 6 insertions, 1 deletions

diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index a3bfb2e8b70f..7b983f935454 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -79,10 +79,15 @@ static void tosa_ext_control(struct snd_soc_codec *codec)
 static int tosa_startup(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct snd_soc_codec *codec = rtd->card->codec;
+        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;
 }