From: Pawel Dembicki <paweldembicki@gmail.com>
Date: Sat, 17 Nov 2018 08:07:47 +0000 (+0000)
Subject: ar8216: add adjust_link checking
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e61812fd346c43edbb16e87e61ff1a2110ca8eeb;p=openwrt%2Fstaging%2Fnbd.git

ar8216: add adjust_link checking

Driver crash when 'phydev->adjust_link' isn't provided.

This patch check if 'phydev->adjust_link' exist before
call the method.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
---

diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c
index 7512ee1b43..6869e1ff19 100644
--- a/target/linux/generic/files/drivers/net/phy/ar8216.c
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.c
@@ -2104,7 +2104,8 @@ ar8xxx_phy_read_status(struct phy_device *phydev)
 
 	phydev->state = PHY_RUNNING;
 	netif_carrier_on(phydev->attached_dev);
-	phydev->adjust_link(phydev->attached_dev);
+	if (phydev->adjust_link)
+		phydev->adjust_link(phydev->attached_dev);
 
 	return 0;
 }