From: YueHaibing <yuehaibing@huawei.com>
Date: Sat, 16 Feb 2019 10:59:35 +0800
Subject: mdio_bus: Fix PTR_ERR() usage after initialization to constant
Patch-mainline: v5.1-rc1
Git-commit: 780feae7eb69388c8d8b661cda6706b0dc0f642b
References: bsc#1119113 FATE#326472

Fix coccinelle warning:

./drivers/net/phy/mdio_bus.c:51:5-12: ERROR: PTR_ERR applied after initialization to constant on line 44
./drivers/net/phy/mdio_bus.c:52:5-12: ERROR: PTR_ERR applied after initialization to constant on line 44

fix this by using IS_ERR before PTR_ERR

Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/phy/mdio_bus.c |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -56,11 +56,12 @@ static int mdiobus_register_gpiod(struct
 		gpiod = fwnode_get_named_gpiod(&mdiodev->dev.of_node->fwnode,
 					       "reset-gpios", 0, GPIOD_OUT_LOW,
 					       "PHY reset");
-	if (PTR_ERR(gpiod) == -ENOENT ||
-	    PTR_ERR(gpiod) == -ENOSYS)
-		gpiod = NULL;
-	else if (IS_ERR(gpiod))
-		return PTR_ERR(gpiod);
+	if (IS_ERR(gpiod)) {
+		if (PTR_ERR(gpiod) == -ENOENT || PTR_ERR(gpiod) == -ENOSYS)
+			gpiod = NULL;
+		else
+			return PTR_ERR(gpiod);
+	}
 
 	mdiodev->reset = gpiod;