net: ucc_geth: drop acquired references in probe error path and remove

The ucc_geth_probe function assigns to ug_info->tbi_node and
ug_info->phy_node a value returned by of_parse_phandle which returns a
new reference. Put this reference again in the error path of
ucc_geth_probe and when removing the device.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 8ceaf7a2660c..f6b956952269 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3862,8 +3862,11 @@ static int ucc_geth_probe(struct platform_device* ofdev)
         /* Create an ethernet device instance */
         dev = alloc_etherdev(sizeof(*ugeth));
 
-        if (dev == NULL)
+        if (dev == NULL) {
+                of_node_put(ug_info->tbi_node);
+                of_node_put(ug_info->phy_node);
                 return -ENOMEM;
+        }
 
         ugeth = netdev_priv(dev);
         spin_lock_init(&ugeth->lock);
@@ -3897,6 +3900,8 @@ static int ucc_geth_probe(struct platform_device* ofdev)
                         pr_err("%s: Cannot register net device, aborting\n",
                                dev->name);
                 free_netdev(dev);
+                of_node_put(ug_info->tbi_node);
+                of_node_put(ug_info->phy_node);
                 return err;
         }
 
@@ -3920,6 +3925,8 @@ static int ucc_geth_remove(struct platform_device* ofdev)
         unregister_netdev(dev);
         free_netdev(dev);
         ucc_geth_memclean(ugeth);
+        of_node_put(ugeth->info->tbi_node);
+        of_node_put(ugeth->info->phy_node);
 
         return 0;
 }