ALSA: hda - Fix NULL dereference in kctl-NID mapping in patch_realtek.c
capsrc_nids can be NULL, and adc_nids should be taken as fallback.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 36556b1..0124352 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2517,7 +2517,10 @@
if (!kctl)
kctl = snd_hda_find_mixer_ctl(codec, "Input Source");
for (i = 0; kctl && i < kctl->count; i++) {
- err = snd_hda_add_nids(codec, kctl, i, spec->capsrc_nids,
+ hda_nid_t *nids = spec->capsrc_nids;
+ if (!nids)
+ nids = spec->adc_nids;
+ err = snd_hda_add_nids(codec, kctl, i, nids,
spec->input_mux->num_items);
if (err < 0)
return err;