From: Yushan Zhou <katrinzhou@tencent.com>
Date: Mon, 7 Nov 2022 09:25:44 +0000 (+0800)
Subject: rtc: rzn1: Check return value in rzn1_rtc_probe
X-Git-Tag: v6.0.16~286
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a093a71d1e6b77b22d4ec3b27b017308517335d;p=thirdparty%2Fkernel%2Fstable.git

rtc: rzn1: Check return value in rzn1_rtc_probe

[ 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>
---

diff --git a/drivers/rtc/rtc-rzn1.c b/drivers/rtc/rtc-rzn1.c
index ac788799c8e3e..0d36bc50197c1 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;