net: ethernet: ti: cpsw: fix device and of_node leaks

commit c7262aaace1b17a650598063e3b9ee1785fde377 upstream.

Make sure to drop the references taken by of_get_child_by_name() and
bus_find_device() before returning from cpsw_phy_sel().

Note that holding a reference to the cpsw-phy-sel device does not
prevent the devres-managed private data from going away.

Fixes: 5892cd135e16 ("drivers: net: cpsw-phy-sel: Add new driver...")
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
index e9cc61e1ec742090157db6b792b1a6a9168e6635..7b0dfdced517069e8076120b69a80426615ceee8 100644 (file)
--- a/drivers/net/ethernet/ti/cpsw-phy-sel.c
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -154,9 +154,12 @@ void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave)
        }
 
        dev = bus_find_device(&platform_bus_type, NULL, node, match);
+       of_node_put(node);
        priv = dev_get_drvdata(dev);
 
        priv->cpsw_phy_sel(priv, phy_mode, slave);
+
+       put_device(dev);
 }
 EXPORT_SYMBOL_GPL(cpsw_phy_sel);