[PATCH 3.16 094/192] rtc: rtc-nuc900: fix loop timeout test

Ben Hutchings
2017-10-09T12:46:34Z

From: Dan Carpenter <dan.carpenter@oracle.com>

commit d0a67c372df410b579197ea818596001fe20070d upstream.

We should change this post-op to a pre-op because we want the loop to
exit with "timeout" set to zero.

Fixes: 0a89b55364e0 ("nuc900/rtc: change the waiting for device ready implement")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/rtc/rtc-nuc900.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/rtc/rtc-nuc900.c
+++ b/drivers/rtc/rtc-nuc900.c
@@ -93,7 +93,7 @@ static int *check_rtc_access_enable(stru
__raw_writel(AERPOWERON, nuc900_rtc->rtc_reg + REG_RTC_AER);

while (!(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_AER) & AERRWENB)
- && timeout--)
+ && --timeout)
mdelay(1);

if (!timeout)