linux-kernel - [PATCH 5.18 111/158] can: rcar_canfd: Add missing of_node_put() in rcar_canfd

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Message-Id: <20220727161025.923480839@linuxfoundation.org>
Date:   Wed, 27 Jul 2022 18:12:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Liang He <windhl@....com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 111/158] can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()

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

[ Upstream commit 7b66dfcc6e1e1f018492619c3d0fc432b6b54272 ]

We should use of_node_put() for the reference returned by
of_get_child_by_name() which has increased the refcount.

Fixes: 45721c406dcf ("can: rcar_canfd: Add support for r8a779a0 SoC")
Link: https://lore.kernel.org/all/20220712095623.364287-1-windhl@126.com
Signed-off-by: Liang He <windhl@....com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/can/rcar/rcar_canfd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index 589996cef5db..8d457d2c3bcc 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1850,6 +1850,7 @@ static int rcar_canfd_probe(struct platform_device *pdev)
 		of_child = of_get_child_by_name(pdev->dev.of_node, name);
 		if (of_child && of_device_is_available(of_child))
 			channels_mask |= BIT(i);
+		of_node_put(of_child);
 	}
 
 	if (chip_id != RENESAS_RZG2L) {
-- 
2.35.1