From 7251a7e35a2435a70599428b3946ebc3a77c804b Mon Sep 17 00:00:00 2001
From: Shaun Ruffell <sruffell@digium.com>
Date: Mon, 3 Jan 2011 18:25:18 +0000
Subject: [PATCH] dahdi_dynamic_[loc|eth|ethmf]: Remove unused return value
 from transmit callback.

The return value from the transmit callback function was not used
anywhere, and is now removed.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9570 a0bf4364-ded3-4de4-8d8a-66a801d63aff
---
 drivers/dahdi/dahdi_dynamic_eth.c   |  3 +--
 drivers/dahdi/dahdi_dynamic_ethmf.c | 10 +++++-----
 drivers/dahdi/dahdi_dynamic_loc.c   |  3 +--
 include/dahdi/kernel.h              |  2 +-
 4 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/dahdi/dahdi_dynamic_eth.c b/drivers/dahdi/dahdi_dynamic_eth.c
index 31566d6..c28bf20 100644
--- a/drivers/dahdi/dahdi_dynamic_eth.c
+++ b/drivers/dahdi/dahdi_dynamic_eth.c
@@ -140,7 +140,7 @@ static int ztdeth_notifier(struct notifier_block *block, unsigned long event, vo
 	return 0;
 }
 
-static int ztdeth_transmit(void *pvt, unsigned char *msg, int msglen)
+static void ztdeth_transmit(void *pvt, unsigned char *msg, int msglen)
 {
 	struct ztdeth *z;
 	struct sk_buff *skb;
@@ -189,7 +189,6 @@ static int ztdeth_transmit(void *pvt, unsigned char *msg, int msglen)
 	}
 	else
 		spin_unlock_irqrestore(&zlock, flags);
-	return 0;
 }
 
 
diff --git a/drivers/dahdi/dahdi_dynamic_ethmf.c b/drivers/dahdi/dahdi_dynamic_ethmf.c
index 126001f..8dfb464 100644
--- a/drivers/dahdi/dahdi_dynamic_ethmf.c
+++ b/drivers/dahdi/dahdi_dynamic_ethmf.c
@@ -388,7 +388,7 @@ static int ztdethmf_notifier(struct notifier_block *block, unsigned long event,
 	return 0;
 }
 
-static int ztdethmf_transmit(void *pvt, unsigned char *msg, int msglen)
+static void ztdethmf_transmit(void *pvt, unsigned char *msg, int msglen)
 {
 	struct ztdeth *z = pvt, *ready_spans[ETHMF_MAX_PER_SPAN_GROUP];
 	struct sk_buff *skb;
@@ -402,13 +402,13 @@ static int ztdethmf_transmit(void *pvt, unsigned char *msg, int msglen)
 #endif
 
 	if (atomic_read(&shutdown))
-		return 0;
+		return;
 
 	rcu_read_lock();
 
 	if (unlikely(!z || !z->dev)) {
 		rcu_read_unlock();
-		return 0;
+		return;
 	}
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 10)
@@ -464,7 +464,7 @@ static int ztdethmf_transmit(void *pvt, unsigned char *msg, int msglen)
 		if (unlikely(!skb)) {
 			rcu_read_unlock();
 			ethmf_errors_inc();
-			return 0;
+			return;
 		}
 
 		/* Reserve header space */
@@ -534,7 +534,7 @@ static int ztdethmf_transmit(void *pvt, unsigned char *msg, int msglen)
 
 	rcu_read_unlock();
 
-	return 0;
+	return;
 }
 
 static int ztdethmf_flush(void)
diff --git a/drivers/dahdi/dahdi_dynamic_loc.c b/drivers/dahdi/dahdi_dynamic_loc.c
index e661ec9..3240311 100644
--- a/drivers/dahdi/dahdi_dynamic_loc.c
+++ b/drivers/dahdi/dahdi_dynamic_loc.c
@@ -75,7 +75,7 @@ struct dahdi_dynamic_local {
 static DEFINE_SPINLOCK(local_lock);
 static LIST_HEAD(dynamic_local_list);
 
-static int
+static void
 dahdi_dynamic_local_transmit(void *pvt, unsigned char *msg, int msglen)
 {
 	struct dahdi_dynamic_local *const d = pvt;
@@ -94,7 +94,6 @@ dahdi_dynamic_local_transmit(void *pvt, unsigned char *msg, int msglen)
 		}
 	}
 	spin_unlock_irqrestore(&local_lock, flags);
-	return 0;
 }
 
 static int digit2int(char d)
diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
index 72e9bae..26bce0b 100644
--- a/include/dahdi/kernel.h
+++ b/include/dahdi/kernel.h
@@ -1000,7 +1000,7 @@ struct dahdi_dynamic_driver {
 	void (*destroy)(void *tpipe);
 
 	/*! Transmit a given message */
-	int (*transmit)(void *tpipe, unsigned char *msg, int msglen);
+	void (*transmit)(void *tpipe, unsigned char *msg, int msglen);
 
 	/*! Flush any pending messages */
 	int (*flush)(void);