V4L/DVB (9532): Properly handle error messages during alsa registering

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/em28xx/em28xx-audio.c

@@ -428,7 +428,7 @@ static int em28xx_audio_init(struct em28xx *dev)
 
 	if (dev->has_audio_class) {
 		/* This device does not support the extension (in this case
-		   the device is expecting the snd-usb-audio module */
+		   the device is expecting the snd-usb-audio module) */
 		return 0;
 	}
 
@@ -449,7 +449,12 @@ static int em28xx_audio_init(struct em28xx *dev)
 	}
 
 	spin_lock_init(&adev->slock);
-	ret = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm);
+	err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_em28xx_pcm_capture);
 	pcm->info_flags = 0;
 	pcm->private_data = dev;
@@ -461,7 +466,7 @@ static int em28xx_audio_init(struct em28xx *dev)
 	err = snd_card_register(card);
 	if (err < 0) {
 		snd_card_free(card);
-		return -ENOMEM;
+		return err;
 	}
 	adev->sndcard = card;
 	adev->udev = dev->udev;