linux-kernel - [PATCH 1/3] sparc: kernel: Fix reference leak in jbusmc

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Date:   Tue,  7 Jun 2022 07:33:00 +0400
From:   Miaoqian Lin <linmq006@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Miaoqian Lin <linmq006@...il.com>, sparclinux@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] sparc: kernel: Fix reference leak in jbusmc_probe

of_find_node_by_path() 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: 85269eb5542b ("sparc64: Add JBUS UltraSPARC-IIIi support to memory controller driver.")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 arch/sparc/kernel/chmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c
index 6ff43df740e0..9cc1b92ffff9 100644
--- a/arch/sparc/kernel/chmc.c
+++ b/arch/sparc/kernel/chmc.c
@@ -409,6 +409,7 @@ static int jbusmc_probe(struct platform_device *op)
 		goto out;
 	}
 	mem_regs = of_get_property(mem_node, "reg", &len);
+	of_node_put(mem_node);
 	if (!mem_regs) {
 		printk(KERN_ERR PFX "Cannot get reg property of /memory node.\n");
 		goto out;
-- 
2.25.1