[PATCH] airo: Don't check for NULL before kfree()

It's unnecessary to check for NULL before calling kfree().
Signed-off-by: NMichal Schmidt <mschmidt@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/airo.c

@@ -2740,8 +2740,6 @@ static int airo_networks_allocate(struct airo_info *ai)
 
 static void airo_networks_free(struct airo_info *ai)
 {
-	if (!ai->networks)
-		return;
 	kfree(ai->networks);
 	ai->networks = NULL;
 }