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gianfar: ethtool: Fix refcount leak in gfar_get_ts_info

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The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 7349a74ea75c ("net: ethernet: gianfar_ethtool: get phc index through drvdata")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20220310015313.14938-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-03-10 01:53:13 +00:00 committed by Jakub Kicinski
parent 5f14747605
commit 2ac5b58e64
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/freescale/gianfar_ethtool.c
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@ -1464,6 +1464,7 @@ static int gfar_get_ts_info(struct net_device *dev,
ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp");
if (ptp_node) {
ptp_dev = of_find_device_by_node(ptp_node);
of_node_put(ptp_node);
if (ptp_dev)
ptp = platform_get_drvdata(ptp_dev);
}