net: vlan: Use sizeof instead of literal number

Use sizeof variable instead of literal number to enhance the readability. Signed-off-by: Gao Feng <fgao@ikuai8.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Oct 18, 2016 · 9c403b6 · 9c403b6
1 parent 7cafb0b
commit 9c403b6
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
@@ -515,8 +515,8 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 		return -EFAULT;
 
 	/* Null terminate this sucker, just in case. */
-	args.device1[23] = 0;
-	args.u.device2[23] = 0;
+	args.device1[sizeof(args.device1) - 1] = 0;
+	args.u.device2[sizeof(args.u.device2) - 1] = 0;
 
 	rtnl_lock();