---

yaml --- r: 334012 b: refs/heads/master c: 34e02aa h: refs/heads/master v: v3
git-mirror · Oct 11, 2012 · 3051f66 · 3051f66
1 parent 8d1f526
commit 3051f66
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Showing 2 changed files with 11 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d97c00a32198f0d066556006cfcd409efb28f746
+refs/heads/master: 34e02aa1fb0886d8e92ab00e3dc17d631487f92d
diff --git a/trunk/drivers/net/vxlan.c b/trunk/drivers/net/vxlan.c
@@ -1090,14 +1090,18 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 	if (data[IFLA_VXLAN_LOCAL])
 		vxlan->saddr = nla_get_be32(data[IFLA_VXLAN_LOCAL]);
 
-	if (data[IFLA_VXLAN_LINK]) {
-		vxlan->link = nla_get_u32(data[IFLA_VXLAN_LINK]);
+	if (data[IFLA_VXLAN_LINK] &&
+	    (vxlan->link = nla_get_u32(data[IFLA_VXLAN_LINK]))) {
+		struct net_device *lowerdev
+			 = __dev_get_by_index(net, vxlan->link);
+
+		if (!lowerdev) {
+			pr_info("ifindex %d does not exist\n", vxlan->link);
+			return -ENODEV;
+		}
 
-		if (!tb[IFLA_MTU]) {
-			struct net_device *lowerdev;
-			lowerdev = __dev_get_by_index(net, vxlan->link);
+		if (!tb[IFLA_MTU])
 			dev->mtu = lowerdev->mtu - VXLAN_HEADROOM;
-		}
 	}
 
 	if (data[IFLA_VXLAN_TOS])