[PATCH 2/2] rtc:rtc-ds1347: Use PTR_ERR_OR_ZERO to replace the open code

[zhong jiang]

PTR_ERR_OR_ZERO has implemented the if(IS_ERR(...)) + PTR_ERR, So
just replace them rather than duplicating its implement.

Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
 drivers/rtc/rtc-ds1347.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c
index 938512c..b97b67f 100644
--- a/drivers/rtc/rtc-ds1347.c
+++ b/drivers/rtc/rtc-ds1347.c
@@ -155,10 +155,7 @@ static int ds1347_probe(struct spi_device *spi)
 	rtc = devm_rtc_device_register(&spi->dev, "ds1347",
 				&ds1347_rtc_ops, THIS_MODULE);
 
-	if (IS_ERR(rtc))
-		return PTR_ERR(rtc);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(rtc);
 }
 
 static struct spi_driver ds1347_driver = {
-- 
1.7.12.4