arm64: atomics: Remove '&' from '+&' asm constraint in lse atomics

The lse implementation of atomic64_dec_if_positive uses the '+&' constraint,
but the '&' is redundant and confusing in this case, since early clobber
on a read/write operand is a strange concept.

Replace the constraint with '+'.

Signed-off-by: Will Deacon <will.deacon@arm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 99fa69c9c3cf..9ef0797380cb 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -435,7 +435,7 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
         "       sub     x30, x30, %[ret]\n"
         "       cbnz    x30, 1b\n"
         "2:")
-        : [ret] "+&r" (x0), [v] "+Q" (v->counter)
+        : [ret] "+r" (x0), [v] "+Q" (v->counter)
         :
         : __LL_SC_CLOBBERS, "cc", "memory");