linux-kernel - [PATCH] arm: mm: Add missing of_node

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Date:   Wed, 15 Jun 2022 16:08:46 +0800
From:   heliang <windhl@....com>
To:     linux@...linux.org.uk
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        windhl@....com
Subject: [PATCH] arm: mm: Add missing of_node_put()

In feroceon_of_init, we use of_find_matching_node() to get a node
pointer with refcount incremented. We should use of_node_put() when
it is not used anymore.

Signed-off-by: heliang <windhl@....com>
---
 arch/arm/mm/cache-feroceon-l2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c
index 5c1b7a7b9af6..a10c4be14087 100644
--- a/arch/arm/mm/cache-feroceon-l2.c
+++ b/arch/arm/mm/cache-feroceon-l2.c
@@ -376,6 +376,7 @@ int __init feroceon_of_init(void)
 	node = of_find_matching_node(NULL, feroceon_ids);
 	if (node && of_device_is_compatible(node, "marvell,kirkwood-cache")) {
 		base = of_iomap(node, 0);
+		of_node_put(node);
 		if (!base)
 			return -ENOMEM;
 
-- 
2.25.1