[PATCH 5.9 016/252] net: ethernet: mtk-star-emac: fix error return code in mtk_star_enable()

[Greg Kroah-Hartman]

From: Zhang Changzhong <zhangchangzhong@xxxxxxxxxx>

[ Upstream commit baee1991fad928d6c8dd5be3197ecb413c420c97 ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Zhang Changzhong <zhangchangzhong@xxxxxxxxxx>
Acked-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1605180879-2573-1-git-send-email-zhangchangzhong@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/mediatek/mtk_star_emac.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -966,6 +966,7 @@ static int mtk_star_enable(struct net_de
 				      mtk_star_adjust_link, 0, priv->phy_intf);
 	if (!priv->phydev) {
 		netdev_err(ndev, "failed to connect to PHY\n");
+		ret = -ENODEV;
 		goto err_free_irq;
 	}