From: Charles Keepax ckeepax@opensource.cirrus.com
commit f33bcc506050f89433a52a3052054d4ebd37b1c1 upstream.
Currently the check against the max value for the control is being applied after the value has had the minimum applied and been masked. But the max value simply indicates the number of volume levels on an SX control, and as such should just be applied on the raw value.
Fixes: 97eea946b939 ("ASoC: ops: Check bounds for second channel in snd_soc_put_volsw_sx()") Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://lore.kernel.org/r/20221125162348.1288005-1-ckeepax@opensource.cirrus... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/soc-ops.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -463,14 +463,15 @@ int snd_soc_put_volsw_sx(struct snd_kcon return err;
if (snd_soc_volsw_is_stereo(mc)) { - val_mask = mask << rshift; - val2 = (ucontrol->value.integer.value[1] + min) & mask; + val2 = ucontrol->value.integer.value[1];
if (mc->platform_max && val2 > mc->platform_max) return -EINVAL; if (val2 > max) return -EINVAL;
+ val_mask = mask << rshift; + val2 = (val2 + min) & mask; val2 = val2 << rshift;
err = snd_soc_component_update_bits(component, reg2, val_mask,