linux-kernel - [PATCH AUTOSEL 6.1 01/21] ARM: OMAP2+: omap4-common: Fix refcount leak bug

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Message-Id: <20230226034256.771769-1-sashal@kernel.org>
Date:   Sat, 25 Feb 2023 22:42:36 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Liang He <windhl@....com>, Tony Lindgren <tony@...mide.com>,
        Sasha Levin <sashal@...nel.org>, linux@...linux.org.uk,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org
Subject: [PATCH AUTOSEL 6.1 01/21] ARM: OMAP2+: omap4-common: Fix refcount leak bug

From: Liang He <windhl@....com>

[ Upstream commit 7c32919a378782c95c72bc028b5c30dfe8c11f82 ]

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>
Message-Id: <20220628112939.160737-1-windhl@....com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 6d1eb4eefefe5..d9ed2a5dcd5ef 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -140,6 +140,7 @@ static int __init omap4_sram_init(void)
 			__func__);
 	else
 		sram_sync = (void __iomem *)gen_pool_alloc(sram_pool, PAGE_SIZE);
+	of_node_put(np);
 
 	return 0;
 }
-- 
2.39.0