[PATCH] i386: Use early clobbers for semaphores now

The new code does clobber the result early, so make sure to tell
gcc to not put it into the same register as a input argument

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h
index e63b6a68f04c..4e34a468c383 100644
--- a/include/asm-i386/semaphore.h
+++ b/include/asm-i386/semaphore.h
@@ -126,7 +126,7 @@ static inline int down_interruptible(struct semaphore * sem)
                 "lea %1,%%eax\n\t"
                 "call __down_failed_interruptible\n"
                 "2:"
-                :"=a" (result), "+m" (sem->count)
+                :"=&a" (result), "+m" (sem->count)
                 :
                 :"memory");
         return result;
@@ -148,7 +148,7 @@ static inline int down_trylock(struct semaphore * sem)
                 "lea %1,%%eax\n\t"
                 "call __down_failed_trylock\n\t"
                 "2:\n"
-                :"=a" (result), "+m" (sem->count)
+                :"=&a" (result), "+m" (sem->count)
                 :
                 :"memory");
         return result;