Ralf Baechle 5095202603 [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 <mlarsen@broadcom.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-04 08:22:15 +01:00
..
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2008-05-12 22:57:51 +10:00
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2008-06-06 11:29:12 -07:00