net: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()

[ Upstream commit c9b895c6878bdb6789dc1d7af60fd10f4a9f1937 ]

If ag71xx_hw_enable() fails, call phylink_disconnect_phy() to clean up.
And if phylink_of_phy_connect() fails, nothing needs to be done.
Compile tested only.

Fixes: 892e09153fa3 ("net: ag71xx: port to phylink")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20221114095549.40342-1-liujian56@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index 416a5c9..7295244 100644 (file)
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1480,7 +1480,7 @@ static int ag71xx_open(struct net_device *ndev)
        if (ret) {
                netif_err(ag, link, ndev, "phylink_of_phy_connect filed with err: %i\n",
                          ret);
-               goto err;
+               return ret;
        }
 
        max_frame_len = ag71xx_max_frame_len(ndev->mtu);
@@ -1501,6 +1501,7 @@ static int ag71xx_open(struct net_device *ndev)
 
 err:
        ag71xx_rings_cleanup(ag);
+       phylink_disconnect_phy(ag->phylink);
        return ret;
 }