In case of error, the function of_get_mac_address() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
Reviewed-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
v1 -> v2: fix subsystem prefix
---
drivers/net/ethernet/atheros/ag71xx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index 72a57c6cd254..3088a43e6436 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1732,9 +1732,9 @@ static int ag71xx_probe(struct platform_device *pdev)
ag->stop_desc->next = (u32)ag->stop_desc_dma;
mac_addr = of_get_mac_address(np);
- if (mac_addr)
+ if (!IS_ERR(mac_addr))
memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
- if (!mac_addr || !is_valid_ether_addr(ndev->dev_addr)) {
+ if (IS_ERR(mac_addr) || !is_valid_ether_addr(ndev->dev_addr)) {
netif_err(ag, probe, ndev, "invalid MAC address, using random address\n");
eth_random_addr(ndev->dev_addr);
}
