[ALSA] fix behaviour of ac97_enum_mixer elements
AC97 Codec
ac97_enum mixer elements (e.g., 'Capture Source') did not work because
of wrong bitmask calculation in snd_ac97_get_enum_double() and
snd_ac97_put_enum_double().
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1072
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 1ad7f83..36a33ae 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -465,7 +465,7 @@
struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
unsigned short val, bitmask;
- for (bitmask = 1; bitmask > e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
;
val = snd_ac97_read_cache(ac97, e->reg);
ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
@@ -482,7 +482,7 @@
unsigned short val;
unsigned short mask, bitmask;
- for (bitmask = 1; bitmask > e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
;
if (ucontrol->value.enumerated.item[0] > e->mask - 1)
return -EINVAL;