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path: root/drivers/media/usb/em28xx/em28xx-audio.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-audio.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-audio.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c
index 0f5b6f3e7a3f..f75c0a5494d6 100644
--- a/drivers/media/usb/em28xx/em28xx-audio.c
+++ b/drivers/media/usb/em28xx/em28xx-audio.c
@@ -301,6 +301,7 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream)
goto err;
}
+ kref_get(&dev->ref);
dev->adev.users++;
mutex_unlock(&dev->lock);
@@ -341,6 +342,7 @@ static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream)
substream->runtime->dma_area = NULL;
}
mutex_unlock(&dev->lock);
+ kref_put(&dev->ref, em28xx_free_device);
return 0;
}
@@ -895,6 +897,8 @@ static int em28xx_audio_init(struct em28xx *dev)
em28xx_info("Binding audio extension\n");
+ kref_get(&dev->ref);
+
printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
"Rechberger\n");
printk(KERN_INFO
@@ -967,7 +971,7 @@ static int em28xx_audio_fini(struct em28xx *dev)
if (dev == NULL)
return 0;
- if (dev->has_alsa_audio != 1) {
+ if (!dev->has_alsa_audio) {
/* This device does not support the extension (in this case
the device is expecting the snd-usb-audio module or
doesn't have analog audio support at all) */
@@ -986,6 +990,7 @@ static int em28xx_audio_fini(struct em28xx *dev)
dev->adev.sndcard = NULL;
}
+ kref_put(&dev->ref, em28xx_free_device);
return 0;
}