[ARM] 3616/1: fix timer handler wrap logic for a number of platforms
Patch from Lennert Buytenhek
A couple of platforms aren't using the right comparison type in their
timer interrupt handlers (as we're comparing two wrapping timestamps,
we need a bmi/bpl-type comparison, not an unsigned comparison) -- this
patch fixes them up.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 00b761f..bf25a76 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -276,7 +276,7 @@
/*
* Catch up with the real idea of time
*/
- while ((*IXP4XX_OSTS - last_jiffy_time) > LATCH) {
+ while ((signed long)(*IXP4XX_OSTS - last_jiffy_time) >= LATCH) {
timer_tick(regs);
last_jiffy_time += LATCH;
}