net: usb: support of_get_mac_address new ERR_PTR error

There was NVMEM support added to of_get_mac_address, so it could now return
ERR_PTR encoded error values, so we need to adjust all current users of
of_get_mac_address to this new fact.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index ec287c9741e8..d27b627b4317 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -774,7 +774,7 @@ static void smsc75xx_init_mac_address(struct usbnet *dev)
 
         /* maybe the boot loader passed the MAC address in devicetree */
         mac_addr = of_get_mac_address(dev->udev->dev.of_node);
-        if (mac_addr) {
+        if (!IS_ERR(mac_addr)) {
                 memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN);
                 return;
         }
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index e3d08626828e..ab239113351d 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -917,7 +917,7 @@ static void smsc95xx_init_mac_address(struct usbnet *dev)
 
         /* maybe the boot loader passed the MAC address in devicetree */
         mac_addr = of_get_mac_address(dev->udev->dev.of_node);
-        if (mac_addr) {
+        if (!IS_ERR(mac_addr)) {
                 memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN);
                 return;
         }