linux-kernel - [PATCH] rtc: at91sam9: fix OF node leak in probe() error path

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Message-ID: <20240825183103.102904-1-krzysztof.kozlowski@linaro.org>
Date: Sun, 25 Aug 2024 20:31:03 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Claudiu Beznea <claudiu.beznea@...on.dev>,
	Boris Brezillon <bbrezillon@...nel.org>,
	Johan Hovold <johan@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	linux-rtc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	stable@...r.kernel.org
Subject: [PATCH] rtc: at91sam9: fix OF node leak in probe() error path

Driver is leaking an OF node reference obtained from
of_parse_phandle_with_fixed_args().

Fixes: 43e112bb3dea ("rtc: at91sam9: make use of syscon/regmap to access GPBR registers")
Cc: <stable@...r.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/rtc/rtc-at91sam9.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index f93bee96e362..993c0878fb66 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -368,6 +368,7 @@ static int at91_rtc_probe(struct platform_device *pdev)
 		return ret;
 
 	rtc->gpbr = syscon_node_to_regmap(args.np);
+	of_node_put(args.np);
 	rtc->gpbr_offset = args.args[0];
 	if (IS_ERR(rtc->gpbr)) {
 		dev_err(&pdev->dev, "failed to retrieve gpbr regmap, aborting.\n");
-- 
2.43.0