commit f55889128a776b51581394b20abd0b470304cf95
author Varka Bhadram <varkab@cdac.in> Mon Aug 11 13:25:10 2014 +0200
committer Marcel Holtmann <marcel@holtmann.org> Thu Aug 14 08:49:25 2014 +0200
tree 459042059218e28f568d4793e7b73a31b333989d
parent 0ba1f94e72b811215ce2f4610fe0f6cf88f4b28a

mac802154: common tx error path

This patch introduce the common error path on failure of Tx by
inserting the label 'err_tx'.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/mac802154/tx.c

diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 8124353..fdf4c0e6 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -89,8 +89,7 @@
 
 	if (!(priv->phy->channels_supported[page] & (1 << chan))) {
 		WARN_ON(1);
-		kfree_skb(skb);
-		return NETDEV_TX_OK;
+		goto err_tx;
 	}
 
 	mac802154_monitors_rx(mac802154_to_priv(&priv->hw), skb);
@@ -103,12 +102,10 @@
 		data[1] = crc >> 8;
 	}
 
-	if (skb_cow_head(skb, priv->hw.extra_tx_headroom)) {
-		kfree_skb(skb);
-		return NETDEV_TX_OK;
-	}
+	if (skb_cow_head(skb, priv->hw.extra_tx_headroom))
+		goto err_tx;
 
-	work = kzalloc(sizeof(struct xmit_work), GFP_ATOMIC);
+	work = kzalloc(sizeof(*work), GFP_ATOMIC);
 	if (!work) {
 		kfree_skb(skb);
 		return NETDEV_TX_BUSY;
@@ -129,4 +126,8 @@
 	queue_work(priv->dev_workqueue, &work->work);
 
 	return NETDEV_TX_OK;
+
+err_tx:
+	kfree_skb(skb);
+	return NETDEV_TX_OK;
 }