[PATCH -next] rtc: rtc-sunplus: fix return value in sp_rtc_probe()

[Yang Yingliang]

If devm_ioremap_resource() fails, it should return error
code from sp_rtc->reg_base in sp_rtc_probe().

Fixes: fad6cbe9b2b4 ("rtc: Add driver for RTC in Sunplus SP7021")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 drivers/rtc/rtc-sunplus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-sunplus.c b/drivers/rtc/rtc-sunplus.c
index 0b3873204f5c..e8e2ab1103fc 100644
--- a/drivers/rtc/rtc-sunplus.c
+++ b/drivers/rtc/rtc-sunplus.c
@@ -238,7 +238,7 @@ static int sp_rtc_probe(struct platform_device *plat_dev)
 	sp_rtc->res = platform_get_resource_byname(plat_dev, IORESOURCE_MEM, RTC_REG_NAME);
 	sp_rtc->reg_base = devm_ioremap_resource(&plat_dev->dev, sp_rtc->res);
 	if (IS_ERR(sp_rtc->reg_base))
-		return dev_err_probe(&plat_dev->dev, PTR_ERR(sp_rtc->res),
+		return dev_err_probe(&plat_dev->dev, PTR_ERR(sp_rtc->reg_base),
 					    "%s devm_ioremap_resource fail\n", RTC_REG_NAME);
 	dev_dbg(&plat_dev->dev, "res = 0x%x, reg_base = 0x%lx\n",
 		sp_rtc->res->start, (unsigned long)sp_rtc->reg_base);
-- 
2.25.1