ALSA: hda - Fix NULL dereference in snd_hda_gen_build_controls()



When no controls are assigned in the parser (e.g. no analog path),
spec->kctls.list is still NULL.  We need to check it before passing to
snd_hda_add_new_ctls().

Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 9eb413e5

sound/pci/hda/hda_generic.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -2906,9 +2906,11 @@ int snd_hda_gen_build_controls(struct hda_codec *codec)
		struct hda_gen_spec *spec = codec->spec;
		int err;

		if (spec->kctls.used) {
		err = snd_hda_add_new_ctls(codec, spec->kctls.list);
		if (err < 0)
		return err;
		}

		if (spec->multiout.dig_out_nid) {
		err = snd_hda_create_dig_out_ctls(codec,