linux-kernel - [PATCH 3/5] ARM: imx31: add missing of_node

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Message-Id: <20221206171049.3316611-4-dario.binacchi@amarulasolutions.com>
Date:   Tue,  6 Dec 2022 18:10:47 +0100
From:   Dario Binacchi <dario.binacchi@...rulasolutions.com>
To:     linux-kernel@...r.kernel.org
Cc:     Amarula patchwork <linux-amarula@...rulasolutions.com>,
        Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        Arnd Bergmann <arnd@...db.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/5] ARM: imx31: add missing of_node_put()

In mx31_read_cpu_rev(), of_find_compatible_node() returns a node pointer
with refcount incremented. Use of_node_put() on it when done.

Fixes: 3172225d45bd9 ("ARM: imx31: Retrieve the IIM base address from devicetree")
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
---

 arch/arm/mach-imx/cpu-imx31.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-imx/cpu-imx31.c b/arch/arm/mach-imx/cpu-imx31.c
index b9c24b851d1a..35c544924e50 100644
--- a/arch/arm/mach-imx/cpu-imx31.c
+++ b/arch/arm/mach-imx/cpu-imx31.c
@@ -39,6 +39,7 @@ static int mx31_read_cpu_rev(void)
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx31-iim");
 	iim_base = of_iomap(np, 0);
+	of_node_put(np);
 	BUG_ON(!iim_base);
 
 	/* read SREV register from IIM module */
-- 
2.32.0