From: Sergey Vlasov Date: Mon, 25 Apr 2005 09:22:20 +0000 (+0200) Subject: [ALSA] fix behaviour of ac97_enum_mixer elements X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=b16760bbb9e3c63b6beef7e2c8f8db64ab5efe70;p=linux-edison.git [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 Signed-off-by: Jaroslav Kysela --- diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 1ad7f83a65e..36a33ae9ae0 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -465,7 +465,7 @@ int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * u 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 @@ int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * u 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;