ALSA: hda - Fix error handling in patch_ca0132.c
In patch_ca0132.c, the error returned from chipio_write() isn't checked
always. Also, the power-up/down sequence isn't tracked properly in some
error paths.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 35abe3c..21d91d5 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -728,18 +728,19 @@
err = chipio_read(codec, REG_CODEC_MUTE, &data);
if (err < 0)
- return err;
+ goto exit;
/* *valp 0 is mute, 1 is unmute */
data = (data & 0x7f) | (*valp ? 0 : 0x80);
- chipio_write(codec, REG_CODEC_MUTE, data);
+ err = chipio_write(codec, REG_CODEC_MUTE, data);
if (err < 0)
- return err;
+ goto exit;
spec->curr_hp_switch = *valp;
+ exit:
snd_hda_power_down(codec);
- return 1;
+ return err < 0 ? err : 1;
}
static int ca0132_speaker_switch_get(struct snd_kcontrol *kcontrol,
@@ -770,18 +771,19 @@
err = chipio_read(codec, REG_CODEC_MUTE, &data);
if (err < 0)
- return err;
+ goto exit;
/* *valp 0 is mute, 1 is unmute */
data = (data & 0xef) | (*valp ? 0 : 0x10);
- chipio_write(codec, REG_CODEC_MUTE, data);
+ err = chipio_write(codec, REG_CODEC_MUTE, data);
if (err < 0)
- return err;
+ goto exit;
spec->curr_speaker_switch = *valp;
+ exit:
snd_hda_power_down(codec);
- return 1;
+ return err < 0 ? err : 1;
}
static int ca0132_hp_volume_get(struct snd_kcontrol *kcontrol,
@@ -819,25 +821,26 @@
err = chipio_read(codec, REG_CODEC_HP_VOL_L, &data);
if (err < 0)
- return err;
+ goto exit;
val = 31 - left_vol;
data = (data & 0xe0) | val;
- chipio_write(codec, REG_CODEC_HP_VOL_L, data);
+ err = chipio_write(codec, REG_CODEC_HP_VOL_L, data);
if (err < 0)
- return err;
+ goto exit;
val = 31 - right_vol;
data = (data & 0xe0) | val;
- chipio_write(codec, REG_CODEC_HP_VOL_R, data);
+ err = chipio_write(codec, REG_CODEC_HP_VOL_R, data);
if (err < 0)
- return err;
+ goto exit;
spec->curr_hp_volume[0] = left_vol;
spec->curr_hp_volume[1] = right_vol;
+ exit:
snd_hda_power_down(codec);
- return 1;
+ return err < 0 ? err : 1;
}
static int add_hp_switch(struct hda_codec *codec, hda_nid_t nid)
@@ -936,6 +939,8 @@
if (err < 0)
return err;
err = add_in_volume(codec, spec->dig_in, "IEC958");
+ if (err < 0)
+ return err;
}
return 0;
}