[PATCH net-next] net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup()

[Russell King (Oracle)]

Add cleanup for failure paths in qcom_ethqos_serdes_powerup(). This
was missing calling phy_exit() and phy_power_off() at appropriate
failure points.

Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c  | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 869f924f3cde..af8204c0e188 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -659,10 +659,18 @@ static int qcom_ethqos_serdes_powerup(struct net_device *ndev, void *priv)
 		return ret;
 
 	ret = phy_power_on(ethqos->serdes_phy);
-	if (ret)
+	if (ret) {
+		phy_exit(ethqos->serdes_phy);
 		return ret;
+	}
 
-	return phy_set_speed(ethqos->serdes_phy, ethqos->serdes_speed);
+	ret = phy_set_speed(ethqos->serdes_phy, ethqos->serdes_speed);
+	if (ret) {
+		phy_power_off(ethqos->serdes_phy);
+		phy_exit(ethqos->serdes_phy);
+	}
+
+	return ret;
 }
 
 static void qcom_ethqos_serdes_powerdown(struct net_device *ndev, void *priv)
-- 
2.47.3