[PATCH net] net: hisilicon: Fix signedness bug in hix5hd2_dev_probe()

[Dan Carpenter]

The "priv->phy_mode" variable is an enum and in this context GCC will
treat it as unsigned to the error handling will never trigger.

Fixes: 57c5bc9ad7d7 ("net: hisilicon: add hix5hd2 mac driver")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c 
b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index 95a6b0926170..c41b19c760f8 100644
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -1194,7 +1194,7 @@ static int hix5hd2_dev_probe(struct platform_device *pdev)
                goto err_free_mdio;
 
        priv->phy_mode = of_get_phy_mode(node);
-       if (priv->phy_mode < 0) {
+       if ((int)priv->phy_mode < 0) {
                netdev_err(ndev, "not find phy-mode\n");
                ret = -EINVAL;
                goto err_mdiobus;
-- 
2.20.1