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authorLennert Buytenhek <buytenh@wantstofly.org>2006-06-22 10:30:53 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-22 10:30:53 +0100
commitf869afab8f36c5f8561557f74b4b9846719092da (patch)
tree6a23d7981a3b06b9cd40ad99c1543d22f6a1d528 /arch/arm/mach-ixp2000
parent84b61f6d3ad8a5761e61d83076588f64a289a574 (diff)
[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>
Diffstat (limited to 'arch/arm/mach-ixp2000')
-rw-r--r--arch/arm/mach-ixp2000/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 6e8d504aca55..186f632035b8 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -211,7 +211,8 @@ static int ixp2000_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
/* clear timer 1 */
ixp2000_reg_wrb(IXP2000_T1_CLR, 1);
- while ((next_jiffy_time - *missing_jiffy_timer_csr) > ticks_per_jiffy) {
+ while ((signed long)(next_jiffy_time - *missing_jiffy_timer_csr)
+ >= ticks_per_jiffy) {
timer_tick(regs);
next_jiffy_time -= ticks_per_jiffy;
}