net: netcp: add missing of_node_put

for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression r.n;
expression r,e;
@@

 for_each_child_of_node(r,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c
index 6bff8d82ceab7a428e73048504a5dd63f4a1c1bd..4e70e7586a0918a045008b7e54e807f0f11e2de9 100644 (file)
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -2637,8 +2637,10 @@ static void init_secondary_ports(struct gbe_priv *gbe_dev,
                        mac_phy_link = true;
 
                slave->open = true;
-               if (gbe_dev->num_slaves >= gbe_dev->max_num_slaves)
+               if (gbe_dev->num_slaves >= gbe_dev->max_num_slaves) {
+                       of_node_put(port);
                        break;
+               }
        }
 
        /* of_phy_connect() is needed only for MAC-PHY interface */
@@ -3137,8 +3139,10 @@ static int gbe_probe(struct netcp_device *netcp_device, struct device *dev,
                        continue;
                }
                gbe_dev->num_slaves++;
-               if (gbe_dev->num_slaves >= gbe_dev->max_num_slaves)
+               if (gbe_dev->num_slaves >= gbe_dev->max_num_slaves) {
+                       of_node_put(interface);
                        break;
+               }
        }
        of_node_put(interfaces);