dpaa_eth: Fix missing of_node_put in dpaa_get_ts_info()

[ Upstream commit 1a7eb80d170c28be2928433702256fe2a0bd1e0f ]

Both of of_get_parent() and of_parse_phandle() return node pointer with
refcount incremented, use of_node_put() on it to decrease refcount
when done.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
index 763d2c7..5750f9a 100644 (file)
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
@@ -489,11 +489,15 @@ static int dpaa_get_ts_info(struct net_device *net_dev,
        info->phc_index = -1;
 
        fman_node = of_get_parent(mac_node);
-       if (fman_node)
+       if (fman_node) {
                ptp_node = of_parse_phandle(fman_node, "ptimer-handle", 0);
+               of_node_put(fman_node);
+       }
 
-       if (ptp_node)
+       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);