From: 이경택 gt82.lee@samsung.com
commit 0ab070917afdc93670c2d0ea02ab6defb6246a7c upstream.
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@samsung.com Link: https://lore.kernel.org/r/001001d60665%24db7af3e0%249270dba0%24@samsung.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- sound/soc/soc-ops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -837,7 +837,7 @@ int snd_soc_get_xr_sx(struct snd_kcontro 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; @@ -886,7 +886,7 @@ int snd_soc_put_xr_sx(struct snd_kcontro 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;