[PATCH net v2 2/4] net: ethernet: ti: cpsw: fix device and of_node leaks

From: Johan Hovold
Date: Thu Nov 03 2016 - 13:42:32 EST

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@xxxxxx>
Cc: Grygorii Strashko <grygorii.strashko@xxxxxx>
Cc: linux-omap@xxxxxxxxxxxxxxx
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
drivers/net/ethernet/ti/cpsw-phy-sel.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
index 054a8dd23dae..ba1e45ff6aae 100644
--- a/drivers/net/ethernet/ti/cpsw-phy-sel.c
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -176,9 +176,12 @@ 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);