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microblaze: Reversed logic in futex cmpxchg

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futex_atomic_cmpxchg_inatomic exchanged if the values were
unequal rather than equal. This caused incorrect behavior
of robust futexes.

Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Meyer, Kirk 2013-05-23 17:06:57 +00:00 committed by Michal Simek
parent b5dd0bb43e
commit f6a12a7d0b
1 changed files with 1 additions and 1 deletions
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2
arch/microblaze/include/asm/futex.h
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@ -105,7 +105,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
__asm__ __volatile__ ("1: lwx %1, %3, r0; \
cmp %2, %1, %4; \
beqi %2, 3f; \
bnei %2, 3f; \
2: swx %5, %3, r0; \
addic %2, r0, 0; \
bnei %2, 1b; \