1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c
index ba3082422a01..f118de6e3672 100644
--- a/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/drivers/media/video/saa7134/saa7134-alsa.c
@@ -613,9 +613,15 @@ static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         snd_card_saa7134_pcm_t *pcm;
         snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
-        struct saa7134_dev *dev = saa7134->dev;
+        struct saa7134_dev *dev;
         int amux, err;
 
+        if (!saa7134) {
+                printk(KERN_ERR "BUG: saa7134 can't find device struct."
+                                " Can't proceed with open\n");
+                return -ENODEV;
+        }
+        dev = saa7134->dev;
         mutex_lock(&dev->dmasound.lock);
 
         dev->dmasound.read_count  = 0;