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Commit ce85c9ac authored by Raymond Yau's avatar Raymond Yau Committed by Takashi Iwai
Browse files

ALSA: hda - fix NULL-dereference in patch_realtek 



Fix NULL-dereference when try to use alt_playback since those codecs
which support multistreaming playback usually have more than 1 adc but
the driver should create alt_capture when spec->stream_analog_alt_capture
is also defined.

Signed-off-by: default avatarRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 20ec8b24

sound/pci/hda/patch_realtek.c

+1 −1
Original line number Diff line number Diff line
@@ -4424,7 +4424,7 @@ static int alc_build_pcms(struct hda_codec *codec) 
				alc_pcm_null_stream;

			info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = 0;

		}

		if (spec->num_adc_nids > 1) {

		if (spec->num_adc_nids > 1 && spec->stream_analog_alt_capture) {

			info->stream[SNDRV_PCM_STREAM_CAPTURE] =

				*spec->stream_analog_alt_capture;

			info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =