Subject: [PATCH 4/4] [IrDA] tsap init routine factorisation

From: [email-masked]
Date: Mon, 02 Jul 2007 01:14:31 +0300

This patch extracts common code from irttp_open_tsap() and irttp_dup() 
into a new function to 1) avoid code duplication, 2) help avoid forgetting 
object initialization in the tsap duplication path in the future.

Signed-off-by: G. Liakhovetski <gl-o/[email-masked]>
Signed-off-by: Samuel Ortiz <[email-masked]>

--- a/net/irda/irttp.c	2 Apr 2007 10:36:28 -0000	1.1.1.11.4.2
+++ b/net/irda/irttp.c	30 May 2007 13:14:19 -0000
@@ -369,6 +369,20 @@ static int irttp_param_max_sdu_size(void
 /* Everything is happily mixed up. Waiting for next clean up - Jean II */
 
 /*
+ * Initialization, that has to be done on new tsap
+ * instance allocation and on duplication
+ */
+static void irttp_init_tsap(struct tsap_cb *tsap)
+{
+	spin_lock_init(&tsap->lock);
+	init_timer(&tsap->todo_timer);
+
+	skb_queue_head_init(&tsap->rx_queue);
+	skb_queue_head_init(&tsap->tx_queue);
+	skb_queue_head_init(&tsap->rx_fragments);
+}
+
+/*
  * Function irttp_open_tsap (stsap, notify)
  *
  *    Create TSAP connection endpoint,
@@ -395,10 +409,11 @@ struct tsap_cb *irttp_open_tsap(__u8 sts
 		IRDA_DEBUG(0, "%s(), unable to kmalloc!\n", __FUNCTION__);
 		return NULL;
 	}
-	spin_lock_init(&self->lock);
+
+	/* Initialize internal objects */
+	irttp_init_tsap(self);
 
 	/* Initialise todo timer */
-	init_timer(&self->todo_timer);
 	self->todo_timer.data     = (unsigned long) self;
 	self->todo_timer.function = &irttp_todo_expired;
 
@@ -418,9 +433,6 @@ struct tsap_cb *irttp_open_tsap(__u8 sts
 	self->magic = TTP_TSAP_MAGIC;
 	self->connected = FALSE;
 
-	skb_queue_head_init(&self->rx_queue);
-	skb_queue_head_init(&self->tx_queue);
-	skb_queue_head_init(&self->rx_fragments);
 	/*
 	 *  Create LSAP at IrLMP layer
 	 */
@@ -1455,12 +1467,9 @@ struct tsap_cb *irttp_dup(struct tsap_cb
 
 	/* Not everything should be copied */
 	new->notify.instance = instance;
-	spin_lock_init(&new->lock);
-	init_timer(&new->todo_timer);
 
-	skb_queue_head_init(&new->rx_queue);
-	skb_queue_head_init(&new->tx_queue);
-	skb_queue_head_init(&new->rx_fragments);
+	/* Initialize internal objects */
+	irttp_init_tsap(new);
 
 	/* This is locked */
 	hashbin_insert(irttp->tsaps, (irda_queue_t *) new, (long) new, NULL);

-- 

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