rtc: isl12057: use PTR_ERR_OR_ZERO to fix coccinelle warnings

drivers/rtc/rtc-isl12057.c:278:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Arnaud Ebalard <arno@natisbad.org>
CC: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/rtc/rtc-isl12057.c b/drivers/rtc/rtc-isl12057.c
index 7854a656628f..835b425549bd 100644
--- a/drivers/rtc/rtc-isl12057.c
+++ b/drivers/rtc/rtc-isl12057.c
@@ -275,10 +275,7 @@ static int isl12057_probe(struct i2c_client *client,
         dev_set_drvdata(dev, data);
 
         rtc = devm_rtc_device_register(dev, DRV_NAME, &rtc_ops, THIS_MODULE);
-        if (IS_ERR(rtc))
-                return PTR_ERR(rtc);
-
-        return 0;
+        return PTR_ERR_OR_ZERO(rtc);
 }
 
 #ifdef CONFIG_OF