ALSA: hda - Add sanity check in PCM open callback

Add some sanity checks of struct snd_pcm_hardware fields in the PCM
open callback of hda driver. This makes a bit easier to debug any PCM
setup errors in the codec side.

Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/hda/hda_intel.c

···
 	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;
 }