[PATCH 3/3] ASoC: fix regwmask
이경택
gt82.lee at samsung.com
Tue Mar 31 07:42:25 CEST 2020
If regwshift is 32 and the selected architecture compiles '<<' operator for
signed int literal into rotating shift, '1<<regwshift' became 1 and it
makes regwmask to 0x0.
The literal is set to unsigned long to get intended regwmask.
Signed-off-by: Gyeongtaek Lee <gt82.lee at samsung.com>
---
sound/soc/soc-ops.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index
652657dc6809..55ffb34be95e 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -825,7 +825,7 @@ int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
unsigned int regbase = mc->regbase;
unsigned int regcount = mc->regcount;
unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
- unsigned int regwmask = (1<<regwshift)-1;
+ unsigned int regwmask = (1UL<<regwshift)-1;
unsigned int invert = mc->invert;
unsigned long mask = (1UL<<mc->nbits)-1;
long min = mc->min;
@@ -874,7 +874,7 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
unsigned int regbase = mc->regbase;
unsigned int regcount = mc->regcount;
unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
- unsigned int regwmask = (1<<regwshift)-1;
+ unsigned int regwmask = (1UL<<regwshift)-1;
unsigned int invert = mc->invert;
unsigned long mask = (1UL<<mc->nbits)-1;
long max = mc->max;
--
2.21.0
More information about the Alsa-devel
mailing list