mac80211: Use setup_timer instead of init_timer for mesh path

Use setup_timer() and setup_deferrable_timer() to set the data and
function timer fields. It makes the code cleaner and will allow for
easier change of the timer struct internals.

Signed-off-by: Ondřej Lysoněk <ondrej.lysonek@seznam.cz>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <linux-wireless@vger.kernel.org>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/mesh_pathtbl.c

@@ -397,11 +397,10 @@ struct mesh_path *mesh_path_new(struct ieee80211_sub_if_data *sdata,
 	new_mpath->sdata = sdata;
 	new_mpath->flags = 0;
 	skb_queue_head_init(&new_mpath->frame_queue);
-	new_mpath->timer.data = (unsigned long) new_mpath;
-	new_mpath->timer.function = mesh_path_timer;
 	new_mpath->exp_time = jiffies;
 	spin_lock_init(&new_mpath->state_lock);
-	init_timer(&new_mpath->timer);
+	setup_timer(&new_mpath->timer, mesh_path_timer,
+		    (unsigned long) new_mpath);
 
 	return new_mpath;
 }