batman-adv: Split a condition check

Let us split a check for a condition at the beginning of the batadv_is_ap_isolated() function so that a direct return can be performed in this function if the variable "vlan" contained a null pointer. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Marek Lindner <[email protected]> Signed-off-by: Antonio Quartulli <[email protected]>
iegor · Jan 9, 2016 · e087f34 · e087f34
1 parent f75a33a
commit e087f34
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
@@ -3339,7 +3339,10 @@ bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
 	bool ret = false;
 
 	vlan = batadv_softif_vlan_get(bat_priv, vid);
-	if (!vlan || !atomic_read(&vlan->ap_isolation))
+	if (!vlan)
+		return false;
+
+	if (!atomic_read(&vlan->ap_isolation))
 		goto out;
 
 	tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst, vid);