linux-kernel - [PATCH] arm: mach-omap2: omap4-common: Fix refcount leak bug

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Date:   Fri, 17 Jun 2022 11:55:48 +0800
From:   Liang He <windhl@....com>
To:     tony@...mide.com, linux@...linux.org.uk
Cc:     windhl@....com, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm: mach-omap2: omap4-common: Fix refcount leak bug

In omap4_sram_init(), of_find_compatible_node() 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/omap4-common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 6d1eb4eefefe..e981bf57e64f 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -135,6 +135,7 @@ static int __init omap4_sram_init(void)
 		pr_warn("%s:Unable to allocate sram needed to handle errata I688\n",
 			__func__);
 	sram_pool = of_gen_pool_get(np, "sram", 0);
+	of_node_put(np);
 	if (!sram_pool)
 		pr_warn("%s:Unable to get sram pool needed to handle errata I688\n",
 			__func__);
-- 
2.25.1