ar71xx: fix kernel Oops in at803x_link_change_notify

r45954 ("ar71xx: fix 100/10mbps ethernet link issues on mynet range extender") introduced a pdata based modification of the tx_clk_dly. But it was not checked if pdata actually existed. This caused a page fault on all devices which didn't have at803x_platform_data specified for an at803x based device. Signed-off-by: Sven Eckelmann <sven@open-mesh.com> Backport of r46200 git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46252 3c298f89-4303-0410-b956-a3cf2f4a3e73

ar71xx: fix kernel Oops in at803x_link_change_notify
774d8bb1 · nbd · 94606dcb · 774d8bb1
Commit 774d8bb1 authored Jul 07, 2015 by nbd
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425-net-phy-at803x-allow-to-configure-via-pdata.patch ....18/425-net-phy-at803x-allow-to-configure-via-pdata.patch +1 -1

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--- a/target/linux/ar71xx/patches-3.18/425-net-phy-at803x-allow-to-configure-via-pdata.patch
+++ b/target/linux/ar71xx/patches-3.18/425-net-phy-at803x-allow-to-configure-via-pdata.patch
@@ -141,7 +141,7 @@
 			priv->phy_reset = false;
 		}
 	}
-+	if (pdata->fixup_rgmii_tx_delay &&
+	if (pdata && pdata->fixup_rgmii_tx_delay &&
 +	    phydev->speed != priv->prev_speed) {
 +		switch (phydev->speed) {
 +		case SPEED_10: