[PATCH] net: ocelot: Add of_node_put() before return statement

[Sumera Priyadarsini]

Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node, however when control
is transferred from the middle of the loop, as in the case of
a return or break or goto, there is no decrement thus ultimately
resulting in a memory leak.

Fix a potential memory leak in felix.c by inserting of_node_put()
before the return statement.

Issue found with Coccinelle.

Signed-off-by: Sumera Priyadarsini <sylphrena...@gmail.com>
---
 drivers/net/dsa/ocelot/felix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index c69d9592a2b7..04bfa6e465ff 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -400,6 +400,7 @@ static int felix_parse_ports_node(struct felix *felix,
                if (err < 0) {
                        dev_err(dev, "Unsupported PHY mode %s on port %d\n",
                                phy_modes(phy_mode), port);
+                       of_node_put(child);
                        return err;
                }
 
-- 
2.17.1