ALSA: hda - Fix Oops with Realtek quirks with NULL adc_nids

Somce quirk models don't set adc_nids but let the parser filling it.
But the recent code has unnecessary NULL-checks of spec->input_mux,
and it resulted in NULL dereferences.
This patch fixes that regression.

Reported-and-tested-by: Oliver Neukum <oneukum@suse.de>
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 694327ae8b718523eeafc2731743f1573aa63fe3..0383dd8a11df9e05ab41fc0d299cbe13b141a8c5 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1911,7 +1911,7 @@ static int alc_build_controls(struct hda_codec *codec)
                                return err;
                }
        }
-       if (spec->cap_mixer) {
+       if (spec->cap_mixer && spec->adc_nids) {
                const char *kname = kctl ? kctl->id.name : NULL;
                for (knew = spec->cap_mixer; knew->name; knew++) {
                        if (kname && strcmp(knew->name, kname) == 0)
@@ -3677,7 +3677,7 @@ static int patch_alc880(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc880_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -3804,7 +3804,7 @@ static int patch_alc260(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc260_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -3983,7 +3983,7 @@ static int patch_alc882(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc882_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -4137,7 +4137,7 @@ static int patch_alc262(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc262_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -4293,7 +4293,7 @@ static int patch_alc268(struct hda_codec *codec)
                                          (0 << AC_AMPCAP_MUTE_SHIFT));
        }
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -4705,7 +4705,7 @@ static int patch_alc269(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc269_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -4843,7 +4843,7 @@ static int patch_alc861(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc861_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -4984,7 +4984,7 @@ static int patch_alc861vd(struct hda_codec *codec)
                add_verb(spec, alc660vd_eapd_verbs);
        }
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -5200,7 +5200,7 @@ static int patch_alc662(struct hda_codec *codec)
        if (board_config != ALC_MODEL_AUTO)
                setup_preset(codec, &alc662_presets[board_config]);
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);
@@ -5336,7 +5336,7 @@ static int patch_alc680(struct hda_codec *codec)
 #endif
        }
 
-       if (!spec->no_analog && !spec->adc_nids && spec->input_mux) {
+       if (!spec->no_analog && !spec->adc_nids) {
                alc_auto_fill_adc_caps(codec);
                alc_rebuild_imux_for_auto_mic(codec);
                alc_remove_invalid_adc_nids(codec);