linux-kernel - [PATCH 5.3 078/193] can: dev: add missing of_node_put() after calling of_get_child_by

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Date:   Mon, 11 Nov 2019 19:27:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Franklin S Cooper Jr <fcooper@...com>,
        Wen Yang <wenyang@...ux.alibaba.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH 5.3 078/193] can: dev: add missing of_node_put() after calling of_get_child_by_name()

From: Wen Yang <wenyang@...ux.alibaba.com>

commit db9ee384f6f71f7c5296ce85b7c1a2a2527e7c72 upstream.

of_node_put() needs to be called when the device node which is got
from of_get_child_by_name() finished using.

Fixes: 2290aefa2e90 ("can: dev: Add support for limiting configured bitrate")
Cc: Franklin S Cooper Jr <fcooper@...com>
Signed-off-by: Wen Yang <wenyang@...ux.alibaba.com>
Cc: linux-stable <stable@...r.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/can/dev.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -842,6 +842,7 @@ void of_can_transceiver(struct net_devic
 		return;
 
 	ret = of_property_read_u32(dn, "max-bitrate", &priv->bitrate_max);
+	of_node_put(dn);
 	if ((ret && ret != -EINVAL) || (!ret && !priv->bitrate_max))
 		netdev_warn(dev, "Invalid value for transceiver max bitrate. Ignoring bitrate limit.\n");
 }