dsa: fix for_each_child.cocci warnings

For_each_available_child_of_node should have of_node_put() before
return around line 423.

Generated by: scripts/coccinelle/iterators/for_each_child.cocci

CC: Alexander Lobakin <alobakin@pm.me>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index a7e5ac6..1542bfb 100644 (file)
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -419,8 +419,10 @@ int ksz_switch_register(struct ksz_device *dev,
                                if (of_property_read_u32(port, "reg",
                                                         &port_num))
                                        continue;
-                               if (!(dev->port_mask & BIT(port_num)))
+                               if (!(dev->port_mask & BIT(port_num))) {
+                                       of_node_put(port);
                                        return -EINVAL;
+                               }
                                of_get_phy_mode(port,
                                                &dev->ports[port_num].interface);
                        }