perf_counter: x86: fix 32-bit irq_period assumption

No need to assume the irq_period is 32bit.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 155bc3c239b6..1cedc3468ce5 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -449,7 +449,7 @@ __hw_perf_counter_set_period(struct perf_counter *counter,
                              struct hw_perf_counter *hwc, int idx)
 {
         s64 left = atomic64_read(&hwc->period_left);
-        s32 period = hwc->irq_period;
+        s64 period = hwc->irq_period;
         int err;
 
         /*