Merge commit 'v2.6.26-rc9' into x86/cpu

[linux-2.6-omap-h63xx.git] / drivers / media / video / em28xx / em28xx-audio.c

diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 92b2a6db4fdc15edea12a61ccbdcfa522da7a534..3c006103c1eb369c4817fd74522ef7ffebc91e61 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -268,6 +268,12 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream)
 
        dprintk("opening device and trying to acquire exclusive lock\n");
 
+       if (!dev) {
+               printk(KERN_ERR "BUG: em28xx can't find device struct."
+                               " Can't proceed with open\n");
+               return -ENODEV;
+       }
+
        /* Sets volume, mute, etc */
 
        dev->mute = 0;
@@ -415,6 +421,12 @@ static int em28xx_audio_init(struct em28xx *dev)
        static int          devnr;
        int                 ret, err;
 
+       if (dev->has_audio_class) {
+               /* This device does not support the extension (in this case
+                  the device is expecting the snd-usb-audio module */
+               return 0;
+       }
+
        printk(KERN_INFO "em28xx-audio.c: probing for em28x1 "
                         "non standard usbaudio\n");
        printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
@@ -458,6 +470,12 @@ static int em28xx_audio_fini(struct em28xx *dev)
        if (dev == NULL)
                return 0;
 
+       if (dev->has_audio_class) {
+               /* This device does not support the extension (in this case
+                  the device is expecting the snd-usb-audio module */
+               return 0;
+       }
+
        if (dev->adev) {
                snd_card_free(dev->adev->sndcard);
                kfree(dev->adev);