batman-adv: Delete an unnecessary check before the function call “batadv_softif_vlan_free_ref”

Author: Markus Elfring <elfring@users.sourceforge.net>

The batadv_softif_vlan_free_ref() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Signed-off-by: Marek Lindner 
Signed-off-by: Antonio Quartulli 
---
 net/batman-adv/translation-table.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index ec67def..5852fda 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -3356,8 +3356,7 @@ bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
 	ret = true;
 
 out:
-	if (vlan)
-		batadv_softif_vlan_free_ref(vlan);
+	batadv_softif_vlan_free_ref(vlan);
 	if (tt_global_entry)
 		batadv_tt_global_entry_free_ref(tt_global_entry);
 	if (tt_local_entry)