[PATCH] net: ag71xx: add missed clk_disable_unprepare in error path of probe

[Huang Guobin]

The ag71xx_mdio_probe() forgets to call clk_disable_unprepare() when
of_reset_control_get_exclusive() failed. Add the missed call to fix it.

Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Huang Guobin <huangguob...@huawei.com>
---
 drivers/net/ethernet/atheros/ag71xx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c 
b/drivers/net/ethernet/atheros/ag71xx.c
index 112edbd30823..38cce66ef212 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -556,7 +556,8 @@ static int ag71xx_mdio_probe(struct ag71xx *ag)
        ag->mdio_reset = of_reset_control_get_exclusive(np, "mdio");
        if (IS_ERR(ag->mdio_reset)) {
                netif_err(ag, probe, ndev, "Failed to get reset mdio.\n");
-               return PTR_ERR(ag->mdio_reset);
+               err = PTR_ERR(ag->mdio_reset);
+               goto mdio_err_put_clk;
        }
 
        mii_bus->name = "ag71xx_mdio";
-- 
2.17.1