linux-kernel - [PATCH] arm: mach-omap2: display: Fix refcount leak bug

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Message-Id: <20220617145803.4050918-1-windhl@126.com>
Date:   Fri, 17 Jun 2022 22:58:03 +0800
From:   Liang He <windhl@....com>
To:     tony@...mide.com, linux@...linux.org.uk
Cc:     windhl@....com, linux-arm-kernel@...ts.infradead.org,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm: mach-omap2: display: Fix refcount leak bug

In omapdss_init_fbdev(), of_find_node_by_name() will return a node
pointer with refcount incremented. We should use of_node_put() when
it is not used anymore.

Signed-off-by: Liang He <windhl@....com>
---
 arch/arm/mach-omap2/display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 21413a9b7b6c..eb09a25e3b45 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -211,6 +211,7 @@ static int __init omapdss_init_fbdev(void)
 	node = of_find_node_by_name(NULL, "omap4_padconf_global");
 	if (node)
 		omap4_dsi_mux_syscon = syscon_node_to_regmap(node);
+	of_node_put(node);
 
 	return 0;
 }
-- 
2.25.1