wan: Remove unnecessary alloc/OOM messages

alloc failures already get standardized OOM
messages and a dump_stack.

Hoist assigns from if tests.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wan/cosa.c

@@ -795,8 +795,8 @@ static ssize_t cosa_read(struct file *file,
 	if (mutex_lock_interruptible(&chan->rlock))
 		return -ERESTARTSYS;
 
-	if ((chan->rxdata = kmalloc(COSA_MTU, GFP_DMA|GFP_KERNEL)) == NULL) {
-		pr_info("%s: cosa_read() - OOM\n", cosa->name);
+	chan->rxdata = kmalloc(COSA_MTU, GFP_DMA|GFP_KERNEL);
+	if (chan->rxdata == NULL) {
 		mutex_unlock(&chan->rlock);
 		return -ENOMEM;
 	}
@@ -874,9 +874,8 @@ static ssize_t cosa_write(struct file *file,
 		count = COSA_MTU;
 
 	/* Allocate the buffer */
-	if ((kbuf = kmalloc(count, GFP_KERNEL|GFP_DMA)) == NULL) {
-		pr_notice("%s: cosa_write() OOM - dropping packet\n",
-			  cosa->name);
+	kbuf = kmalloc(count, GFP_KERNEL|GFP_DMA);
+	if (kbuf == NULL) {
 		up(&chan->wsem);
 		return -ENOMEM;
 	}

drivers/net/wan/farsync.c

@@ -2448,11 +2448,9 @@ fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	/* Allocate driver private data */
-	card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL);
-	if (card == NULL) {
-		pr_err("FarSync card found but insufficient memory for driver storage\n");
+	card = kzalloc(sizeof(struct fst_card_info), GFP_KERNEL);
+	if (card == NULL)
 		return -ENOMEM;
-	}
 
 	/* Try to enable the device */
 	if ((err = pci_enable_device(pdev)) != 0) {

drivers/net/wan/hdlc.c

@@ -280,14 +280,13 @@ int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 	if (!try_module_get(proto->module))
 		return -ENOSYS;
 
-	if (size)
-		if ((dev_to_hdlc(dev)->state = kmalloc(size,
-						       GFP_KERNEL)) == NULL) {
-			netdev_warn(dev,
-				    "Memory squeeze on hdlc_proto_attach()\n");
+	if (size) {
+		dev_to_hdlc(dev)->state = kmalloc(size, GFP_KERNEL);
+		if (dev_to_hdlc(dev)->state == NULL) {
 			module_put(proto->module);
 			return -ENOBUFS;
 		}
+	}
 	dev_to_hdlc(dev)->proto = proto;
 	return 0;
 }

drivers/net/wan/x25_asy.c

@@ -128,7 +128,6 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu)
 	rbuff = kmalloc(len + 4, GFP_ATOMIC);
 
 	if (xbuff == NULL || rbuff == NULL) {
-		netdev_warn(dev, "unable to grow X.25 buffers, MTU change cancelled\n");
 		kfree(xbuff);
 		kfree(rbuff);
 		return -ENOMEM;