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ALSA: hda - Fix error path in the sanity check in azx_pcm_open()

Release resources cleanly after errors in the sanity check in
azx_pcm_open().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai hace 16 años
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aba6653617
Se han modificado 1 ficheros con 11 adiciones y 7 borrados
  1. 11 7
      sound/pci/hda/hda_intel.c

+ 11 - 7
sound/pci/hda/hda_intel.c

@@ -1455,6 +1455,17 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 		return err;
 	}
 	snd_pcm_limit_hw_rates(runtime);
+	/* sanity check */
+	if (snd_BUG_ON(!runtime->hw.channels_min) ||
+	    snd_BUG_ON(!runtime->hw.channels_max) ||
+	    snd_BUG_ON(!runtime->hw.formats) ||
+	    snd_BUG_ON(!runtime->hw.rates)) {
+		azx_release_device(azx_dev);
+		hinfo->ops.close(hinfo, apcm->codec, substream);
+		snd_hda_power_down(apcm->codec);
+		mutex_unlock(&chip->open_mutex);
+		return -EINVAL;
+	}
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	azx_dev->substream = substream;
 	azx_dev->running = 0;
@@ -1463,13 +1474,6 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
 	runtime->private_data = azx_dev;
 	snd_pcm_set_sync(substream);
 	mutex_unlock(&chip->open_mutex);
-
-	if (snd_BUG_ON(!runtime->hw.channels_min || !runtime->hw.channels_max))
-		return -EINVAL;
-	if (snd_BUG_ON(!runtime->hw.formats))
-		return -EINVAL;
-	if (snd_BUG_ON(!runtime->hw.rates))
-		return -EINVAL;
 	return 0;
 }