[MIPS] Fix atomic*_sub_if_positive return value.

Reported and initial fix by Thomas Koeller <thomas.koeller@baslerweb.com>,
rewritten by me.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2006-02-23 14:10:53 +00:00
commit 92f22c183c