From: Chen Gang <[email protected]>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 4dcc1cf7316a26e112f5c9fcca531ff98ef44700 upstream.

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 <[email protected]>
Signed-off-by: Chen Gang <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Russell King <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
 arch/arm/include/asm/atomic.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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();
 
-- 
2.3.4

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