[PATCH] phy: don't crush if we have no parent

[Oleksij Rempel]

current code will crash if DT has no PHY entry. With this patch
we will test if parent exist, before testing the parent device node.

Signed-off-by: Oleksij Rempel <linux at rempel-privat.de>
---
 drivers/net/phy/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 7132516aa..25ae40233 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -323,7 +323,7 @@ static struct phy_device *of_mdio_find_phy(struct eth_device *edev)
 	if (!IS_ENABLED(CONFIG_OFDEVICE))
 		return NULL;
 
-	if (!edev->parent->device_node)
+	if (!edev->parent || !edev->parent->device_node)
 		return NULL;
 
 	phy_node = of_parse_phandle(edev->parent->device_node, "phy-handle", 0);
-- 
2.11.0