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powerpc: Fix spin_event_timeout() to be robust over context switches
[safe/jmp/linux-2.6]
/
arch
/
powerpc
/
include
/
asm
/
delay.h
diff --git
a/arch/powerpc/include/asm/delay.h
b/arch/powerpc/include/asm/delay.h
index
1e2eb41
..
52e4d54
100644
(file)
--- a/
arch/powerpc/include/asm/delay.h
+++ b/
arch/powerpc/include/asm/delay.h
@@
-63,6
+63,8
@@
extern void udelay(unsigned long usecs);
udelay(delay); \
else \
cpu_relax(); \
+ if (!__ret) \
+ __ret = (condition); \
__ret; \
})