diff options
| author | Chen Gang <gang.chen@asianux.com> | 2013-10-26 15:07:25 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-09 00:00:12 +0000 |
| commit | 4dcc1cf7316a26e112f5c9fcca531ff98ef44700 (patch) | |
| tree | 4120862133d8c7c18f2f855100d95ce09b6209bb /arch/arm/include | |
| parent | 237f12337cfa2175474e4dd015bc07a25eb9080d (diff) | |
ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg().
For atomic_cmpxchg(), the type of 'oldval' need be 'int' to match the
type of "*ptr" (used by 'ldrex' instruction) and 'old' (used by 'teq'
instruction).
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/atomic.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h index a715ac049e4c..9ee7e01066f9 100644 --- a/arch/arm/include/asm/atomic.h +++ b/arch/arm/include/asm/atomic.h @@ -114,7 +114,8 @@ static inline int atomic_sub_return(int i, atomic_t *v) static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new) { - unsigned long oldval, res; + int oldval; + unsigned long res; smp_mb(); |