[MIPS] Fix bug in atomic_sub_if_positive.
The branch optimization fixes in 2.6.21 introduced a bug in atomic_sub_if_positive that causes it to return even when the sc instruction fails. The result is that e.g. down_trylock becomes unreliable as the semaphore counter is not always decremented. Original MUA-shredded patch from Morten Larsen <email@example.com>. Signed-off-by: Ralf Baechle <firstname.lastname@example.org>
Showing with 2 additions and 2 deletions