linux-kernel - [PATCH] ARM: omap2: Fix refcount leak in omap3xxx_prm_late

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Message-Id: <20220526073724.21169-1-linmq006@gmail.com>
Date:   Thu, 26 May 2022 11:37:24 +0400
From:   Miaoqian Lin <linmq006@...il.com>
To:     Paul Walmsley <paul@...an.com>, Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Nishanth Menon <nm@...com>,
        Santosh Shilimkar <santosh.shilimkar@...com>,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     linmq006@...il.com
Subject: [PATCH] ARM: omap2: Fix refcount leak in omap3xxx_prm_late_init

of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 1e037794f7f0 ("ARM: OMAP3+: PRM: register interrupt information from DT")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 arch/arm/mach-omap2/prm3xxx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 1b442b128569..63e73e9b82bc 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -708,6 +708,7 @@ static int omap3xxx_prm_late_init(void)
 	}
 
 	irq_num = of_irq_get(np, 0);
+	of_node_put(np);
 	if (irq_num == -EPROBE_DEFER)
 		return irq_num;
 
-- 
2.25.1