[PATCH 6.0 0783/1073] rtc: rzn1: Check return value in rzn1_rtc_probe

Greg Kroah-Hartman
2022-12-28T16:27:21Z

From: Yushan Zhou <katrinzhou@tencent.com>

[ Upstream commit 9800f24f7bd5b99fb4fc4ce981427102e2e15a1c ]

The rzn1_rtc_probe() function utilizes devm_pm_runtime_enable()
but wasn't checking the return value. Fix it by adding missing
check.

Fixes: deeb4b5393e1 ("rtc: rzn1: Add new RTC driver")

Signed-off-by: Yushan Zhou <katrinzhou@tencent.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20221107092544.3721053-1-zys.zljxml@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/rtc/rtc-rzn1.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-rzn1.c b/drivers/rtc/rtc-rzn1.c
index ac788799c8e3..0d36bc50197c 100644
--- a/drivers/rtc/rtc-rzn1.c
+++ b/drivers/rtc/rtc-rzn1.c
@@ -355,7 +355,9 @@ static int rzn1_rtc_probe(struct platform_device *pdev)
set_bit(RTC_FEATURE_ALARM_RES_MINUTE, rtc->rtcdev->features);
clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtcdev->features);

- devm_pm_runtime_enable(&pdev->dev);
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret < 0)
+ return ret;
ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0)
return ret;
--
2.35.1