linux-kernel - [PATCH] powerpc/sysdev: fix refcount leak in icp_opal

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Message-Id: <20220402013419.2410298-1-lv.ruyi@zte.com.cn>
Date:   Sat,  2 Apr 2022 01:34:19 +0000
From:   cgel.zte@...il.com
To:     mpe@...erman.id.au
Cc:     benh@...nel.crashing.org, paulus@...ba.org, maz@...nel.org,
        nick.child@....com, lv.ruyi@....com.cn,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] powerpc/sysdev: fix refcount leak in icp_opal_init()

From: Lv Ruyi <lv.ruyi@....com.cn>

The of_find_compatible_node() function returns a node pointer with
refcount incremented, use of_node_put() on it when done.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@....com.cn>
---
 arch/powerpc/sysdev/xics/icp-opal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c
index bda4c32582d9..4dae624b9f2f 100644
--- a/arch/powerpc/sysdev/xics/icp-opal.c
+++ b/arch/powerpc/sysdev/xics/icp-opal.c
@@ -196,6 +196,7 @@ int __init icp_opal_init(void)
 
 	printk("XICS: Using OPAL ICP fallbacks\n");
 
+	of_node_put(np);
 	return 0;
 }
 
-- 
2.25.1