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path: root/drivers/macintosh/rack-meter.c
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Diffstat (limited to 'drivers/macintosh/rack-meter.c')
-rw-r--r--drivers/macintosh/rack-meter.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index caaec654d..465c52219 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -154,8 +154,8 @@ static void rackmeter_do_pause(struct rackmeter *rm, int pause)
DBDMA_DO_STOP(rm->dma_regs);
return;
}
- memset(rdma->buf1, 0, SAMPLE_COUNT & sizeof(u32));
- memset(rdma->buf2, 0, SAMPLE_COUNT & sizeof(u32));
+ memset(rdma->buf1, 0, ARRAY_SIZE(rdma->buf1));
+ memset(rdma->buf2, 0, ARRAY_SIZE(rdma->buf2));
rm->dma_buf_v->mark = 0;
@@ -227,6 +227,7 @@ static void rackmeter_do_timer(struct work_struct *work)
total_idle_ticks = get_cpu_idle_time(cpu);
idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle);
+ idle_ticks = min(idle_ticks, total_ticks);
rcpu->prev_idle = total_idle_ticks;
/* We do a very dumb calculation to update the LEDs for now,