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ALSA: hda - Fix duplicated DAC assignments for Realtek 

Copying hp_pins and speaker_pins from line_out_pins may confuse the
parser, and it can lead to duplicated initializations for the same pin
with a wrong DAC assignment.  The problem appears in 3.0 kernel code.

Cc: <stable@kernel.org> (for 3.0)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-07-27 16:41:57 +02:00
parent ae6ff61e43
commit c48a8fb0d3
1 changed files with 5 additions and 2 deletions
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7
sound/pci/hda/patch_realtek.c
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@ -895,13 +895,15 @@ static void alc_init_auto_hp(struct hda_codec *codec)
if (present == 3)
spec->automute_hp_lo = 1; /* both HP and LO automute */
if (!cfg->speaker_pins[0]) {
if (!cfg->speaker_pins[0] &&
cfg->line_out_type == AUTO_PIN_SPEAKER_OUT) {
memcpy(cfg->speaker_pins, cfg->line_out_pins,
sizeof(cfg->speaker_pins));
cfg->speaker_outs = cfg->line_outs;
}
if (!cfg->hp_pins[0]) {
if (!cfg->hp_pins[0] &&
cfg->line_out_type == AUTO_PIN_HP_OUT) {
memcpy(cfg->hp_pins, cfg->line_out_pins,
sizeof(cfg->hp_pins));
cfg->hp_outs = cfg->line_outs;
@ -920,6 +922,7 @@ static void alc_init_auto_hp(struct hda_codec *codec)
spec->automute_mode = ALC_AUTOMUTE_PIN;
}
if (spec->automute && cfg->line_out_pins[0] &&
cfg->speaker_pins[0] &&
cfg->line_out_pins[0] != cfg->hp_pins[0] &&
cfg->line_out_pins[0] != cfg->speaker_pins[0]) {
for (i = 0; i < cfg->line_outs; i++) {