em28xx-alsa: Fix error patch for init/fini
If something bad happens during init, we free the card data.
However, we still keep it initialized, causing some dependent
code to be called at .fini.
Fix it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c
index 1563f71..45bea1ad 100644
--- a/drivers/media/usb/em28xx/em28xx-audio.c
+++ b/drivers/media/usb/em28xx/em28xx-audio.c
@@ -948,6 +948,7 @@
card_free:
snd_card_free(card);
+ adev->sndcard = NULL;
return err;
}
@@ -966,12 +967,12 @@
em28xx_info("Closing audio extension");
- snd_card_disconnect(dev->adev.sndcard);
- flush_work(&dev->wq_trigger);
-
- em28xx_audio_free_urb(dev);
-
if (dev->adev.sndcard) {
+ snd_card_disconnect(dev->adev.sndcard);
+ flush_work(&dev->wq_trigger);
+
+ em28xx_audio_free_urb(dev);
+
snd_card_free(dev->adev.sndcard);
dev->adev.sndcard = NULL;
}