ALSA: pcm: Use common error handling code in _snd_pcm_new()

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/pcm.c

@@ -783,21 +783,27 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
 	INIT_LIST_HEAD(&pcm->list);
 	if (id)
 		strlcpy(pcm->id, id, sizeof(pcm->id));
-	if ((err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK, playback_count)) < 0) {
-		snd_pcm_free(pcm);
-		return err;
-	}
-	if ((err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_CAPTURE, capture_count)) < 0) {
-		snd_pcm_free(pcm);
-		return err;
-	}
-	if ((err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops)) < 0) {
-		snd_pcm_free(pcm);
-		return err;
-	}
+
+	err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				 playback_count);
+	if (err < 0)
+		goto free_pcm;
+
+	err = snd_pcm_new_stream(pcm, SNDRV_PCM_STREAM_CAPTURE, capture_count);
+	if (err < 0)
+		goto free_pcm;
+
+	err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops);
+	if (err < 0)
+		goto free_pcm;
+
 	if (rpcm)
 		*rpcm = pcm;
 	return 0;
+
+free_pcm:
+	snd_pcm_free(pcm);
+	return err;
 }
 
 /**