ethernet: Remove unnecessary alloc/OOM messages, alloc cleanups

alloc failures already get standardized OOM
messages and a dump_stack.

Convert kzalloc's with multiplies to kcalloc.
Convert kmalloc's with multiplies to kmalloc_array.
Fix a few whitespace defects.
Convert a constant 6 to ETH_ALEN.
Use parentheses around sizeof.
Convert vmalloc/memset to vzalloc.
Remove now unused size variables.

Signed-off-by: Joe Perches <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/atheros/atl1c/atl1c_main.c

···
 	size = sizeof(struct atl1c_buffer) * (tpd_ring->count * 2 +
 		rfd_ring->count);
 	tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
-	if (unlikely(!tpd_ring->buffer_info)) {
-		dev_err(&pdev->dev, "kzalloc failed, size = %d\n",
-			size);
+	if (unlikely(!tpd_ring->buffer_info))
 		goto err_nomem;
-	}
+
 	for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) {
 		tpd_ring[i].buffer_info =
 			(tpd_ring->buffer_info + count);

drivers/net/ethernet/atheros/atl1e/atl1e_main.c

···
 	size = sizeof(struct atl1e_tx_buffer) * (tx_ring->count);
 	tx_ring->tx_buffer = kzalloc(size, GFP_KERNEL);
 	if (tx_ring->tx_buffer == NULL) {
-		netdev_err(adapter->netdev, "kzalloc failed, size = D%d\n",
-			   size);
 		err = -ENOMEM;
 		goto failed;
 	}

drivers/net/ethernet/broadcom/b44.c

···
 	u8 pwol_mask[B44_PMASK_SIZE];
 
 	pwol_pattern = kzalloc(B44_PATTERN_SIZE, GFP_KERNEL);
-	if (!pwol_pattern) {
-		pr_err("Memory not available for WOL\n");
+	if (!pwol_pattern)
 		return;
-	}
 
 	/* Ipv4 magic packet pattern - pattern 0.*/
 	memset(pwol_mask, 0, B44_PMASK_SIZE);

drivers/net/ethernet/broadcom/bcm63xx_enet.c

···
 	priv->tx_desc_alloc_size = size;
 	priv->tx_desc_cpu = p;
 
-	priv->tx_skb = kzalloc(sizeof(struct sk_buff *) * priv->tx_ring_size,
+	priv->tx_skb = kcalloc(priv->tx_ring_size, sizeof(struct sk_buff *),
 			       GFP_KERNEL);
 	if (!priv->tx_skb) {
-		dev_err(kdev, "cannot allocate rx skb queue\n");
 		ret = -ENOMEM;
 		goto out_free_tx_ring;
 	}
···
 	spin_lock_init(&priv->tx_lock);
 
 	/* init & fill rx ring with skbs */
-	priv->rx_skb = kzalloc(sizeof(struct sk_buff *) * priv->rx_ring_size,
+	priv->rx_skb = kcalloc(priv->rx_ring_size, sizeof(struct sk_buff *),
 			       GFP_KERNEL);
 	if (!priv->rx_skb) {
-		dev_err(kdev, "cannot allocate rx skb queue\n");
 		ret = -ENOMEM;
 		goto out_free_tx_skb;
 	}

drivers/net/ethernet/broadcom/cnic.c

···
 
 	alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
 
-	cdev = kzalloc(alloc_size , GFP_KERNEL);
-	if (cdev == NULL) {
-		netdev_err(dev, "allocate dev struct failure\n");
+	cdev = kzalloc(alloc_size, GFP_KERNEL);
+	if (cdev == NULL)
 		return NULL;
-	}
 
 	cdev->netdev = dev;
 	cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);

drivers/net/ethernet/broadcom/tg3.c

···
 	u32 *regs;
 
 	regs = kzalloc(TG3_REG_BLK_SIZE, GFP_ATOMIC);
-	if (!regs) {
-		netdev_err(tp->dev, "Failed allocating register dump buffer\n");
+	if (!regs)
 		return;
-	}
 
 	if (tg3_flag(tp, PCI_EXPRESS)) {
 		/* Read up to but not including private PCI registers */

drivers/net/ethernet/freescale/gianfar_ethtool.c

···
 	int j = MAX_FILER_IDX, l = 0x0;
 	int ret = 1;
 
-	local_rqfpr = kmalloc(sizeof(unsigned int) * (MAX_FILER_IDX + 1),
-			      GFP_KERNEL);
-	local_rqfcr = kmalloc(sizeof(unsigned int) * (MAX_FILER_IDX + 1),
-			      GFP_KERNEL);
+	local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
+				    GFP_KERNEL);
+	local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
+				    GFP_KERNEL);
 	if (!local_rqfpr || !local_rqfcr) {
-		pr_err("Out of memory\n");
 		ret = 0;
 		goto err;
 	}

drivers/net/ethernet/ibm/ehea/ehea_main.c

···
 	u64 hret;
 
 	ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC);
-	if (!ehea_mcl_entry) {
-		pr_err("no mem for mcl_entry\n");
+	if (!ehea_mcl_entry)
 		return;
-	}
 
 	INIT_LIST_HEAD(&ehea_mcl_entry->list);
 

drivers/net/ethernet/ibm/ehea/ehea_qmr.c

···
 	}
 
 	queue->queue_length = nr_of_pages * pagesize;
-	queue->queue_pages = kmalloc(nr_of_pages * sizeof(void *), GFP_KERNEL);
-	if (!queue->queue_pages) {
-		pr_err("no mem for queue_pages\n");
+	queue->queue_pages = kmalloc_array(nr_of_pages, sizeof(void *),
+					   GFP_KERNEL);
+	if (!queue->queue_pages)
 		return -ENOMEM;
-	}
 
 	/*
 	 * allocate pages for queue:
···
 	void *vpage;
 
 	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
-	if (!cq) {
-		pr_err("no mem for cq\n");
+	if (!cq)
 		goto out_nomem;
-	}
 
 	cq->attr.max_nr_of_cqes = nr_of_cqe;
 	cq->attr.cq_token = cq_token;
···
 	struct ehea_eq *eq;
 
 	eq = kzalloc(sizeof(*eq), GFP_KERNEL);
-	if (!eq) {
-		pr_err("no mem for eq\n");
+	if (!eq)
 		return NULL;
-	}
 
 	eq->adapter = adapter;
 	eq->attr.type = type;
···
 
 
 	qp = kzalloc(sizeof(*qp), GFP_KERNEL);
-	if (!qp) {
-		pr_err("no mem for qp\n");
+	if (!qp)
 		return NULL;
-	}
 
 	qp->adapter = adapter;
 

drivers/net/ethernet/ibm/emac/mal.c

···
 	irq_handler_t hdlr_serr, hdlr_txde, hdlr_rxde;
 
 	mal = kzalloc(sizeof(struct mal_instance), GFP_KERNEL);
-	if (!mal) {
-		printk(KERN_ERR
-		       "mal%d: out of memory allocating MAL structure!\n",
-		       index);
+	if (!mal)
 		return -ENOMEM;
-	}
+
 	mal->index = index;
 	mal->ofdev = ofdev;
 	mal->version = of_device_is_compatible(ofdev->dev.of_node, "ibm,mcmal2") ? 2 : 1;

drivers/net/ethernet/ibm/ibmveth.c

···
 	adapter->bounce_buffer =
 	    kmalloc(netdev->mtu + IBMVETH_BUFF_OH, GFP_KERNEL);
 	if (!adapter->bounce_buffer) {
-		netdev_err(netdev, "unable to allocate bounce buffer\n");
 		rc = -ENOMEM;
 		goto err_out_free_irq;
 	}

drivers/net/ethernet/intel/igb/igb_main.c

···
 	igb_init_queue_configuration(adapter);
 
 	/* Setup and initialize a copy of the hw vlan table array */
-	adapter->shadow_vfta = kzalloc(sizeof(u32) *
-				E1000_VLAN_FILTER_TBL_SIZE,
-				GFP_ATOMIC);
+	adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32),
+				       GFP_ATOMIC);
 
 	/* This call may decrease the number of queues */
 	if (igb_init_interrupt_scheme(adapter, true)) {

drivers/net/ethernet/intel/igbvf/netdev.c

···
 	int i;
 
 	if (!netdev_mc_empty(netdev)) {
-		mta_list = kmalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC);
-		if (!mta_list) {
-			dev_err(&adapter->pdev->dev,
-			        "failed to allocate multicast filter list\n");
+		mta_list = kmalloc_array(netdev_mc_count(netdev), ETH_ALEN,
+					 GFP_ATOMIC);
+		if (!mta_list)
 			return;
-		}
 	}
 
 	/* prepare a packed array of only addresses. */

drivers/net/ethernet/marvell/mv643xx_eth.c

···
 	memset(rxq->rx_desc_area, 0, size);
 
 	rxq->rx_desc_area_size = size;
-	rxq->rx_skb = kmalloc(rxq->rx_ring_size * sizeof(*rxq->rx_skb),
-								GFP_KERNEL);
-	if (rxq->rx_skb == NULL) {
-		netdev_err(mp->dev, "can't allocate rx skb ring\n");
+	rxq->rx_skb = kmalloc_array(rxq->rx_ring_size, sizeof(*rxq->rx_skb),
+				    GFP_KERNEL);
+	if (rxq->rx_skb == NULL)
 		goto out_free;
-	}
 
 	rx_desc = rxq->rx_desc_area;
 	for (i = 0; i < rxq->rx_ring_size; i++) {

drivers/net/ethernet/marvell/mvmdio.c

···
 
 	bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
 	if (!bus->irq) {
-		dev_err(&pdev->dev, "Cannot allocate PHY IRQ array\n");
 		mdiobus_free(bus);
 		return -ENOMEM;
 	}

drivers/net/ethernet/marvell/skge.c

···
 	/* space for skge@pci:0000:04:00.0 */
 	hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:")
 		     + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
-	if (!hw) {
-		dev_err(&pdev->dev, "cannot allocate hardware struct\n");
+	if (!hw)
 		goto err_out_free_regions;
-	}
+
 	sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));
 
 	hw->pdev = pdev;

drivers/net/ethernet/marvell/sky2.c

···
 
 	hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:")
 		     + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
-	if (!hw) {
-		dev_err(&pdev->dev, "cannot allocate hardware struct\n");
+	if (!hw)
 		goto err_out_free_regions;
-	}
 
 	hw->pdev = pdev;
 	sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));

drivers/net/ethernet/mellanox/mlx4/en_main.c

···
 
 	printk_once(KERN_INFO "%s", mlx4_en_version);
 
-	mdev = kzalloc(sizeof *mdev, GFP_KERNEL);
+	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
 	if (!mdev) {
-		dev_err(&dev->pdev->dev, "Device struct alloc failed, "
-			"aborting.\n");
 		err = -ENOMEM;
 		goto err_free_res;
 	}

drivers/net/ethernet/mellanox/mlx4/main.c

···
 	/* Allow large DMA segments, up to the firmware limit of 1 GB */
 	dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
 
-	priv = kzalloc(sizeof *priv, GFP_KERNEL);
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
-		dev_err(&pdev->dev, "Device struct alloc failed, "
-			"aborting.\n");
 		err = -ENOMEM;
 		goto err_release_regions;
 	}

drivers/net/ethernet/myricom/myri10ge/myri10ge.c

···
 	/* copy header of running firmware from SRAM to host memory to
 	 * validate firmware */
 	hdr = kmalloc(bytes, GFP_KERNEL);
-	if (hdr == NULL) {
-		dev_err(dev, "could not malloc firmware hdr\n");
+	if (hdr == NULL)
 		return -ENOMEM;
-	}
+
 	memcpy_fromio(hdr, mgp->sram + hdr_offset, bytes);
 	status = myri10ge_validate_firmware(mgp, hdr);
 	kfree(hdr);

drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c

···
 	adapter->mdump.md_template =
 		kmalloc(adapter->mdump.md_template_size, GFP_KERNEL);
 
-	if (!adapter->mdump.md_template) {
-		dev_err(&adapter->pdev->dev, "Unable to allocate memory "
-			"for minidump template.\n");
+	if (!adapter->mdump.md_template)
 		return -ENOMEM;
-	}
 
 	err = netxen_get_minidump_template(adapter);
 	if (err) {

drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c

···
 	}
 
 	cur = kzalloc(sizeof(nx_mac_list_t), GFP_ATOMIC);
-	if (cur == NULL) {
-		printk(KERN_ERR "%s: failed to add mac address filter\n",
-				adapter->netdev->name);
+	if (cur == NULL)
 		return -ENOMEM;
-	}
+
 	memcpy(cur->mac_addr, addr, ETH_ALEN);
 	list_add_tail(&cur->list, &adapter->mac_list);
 	return nx_p3_sre_macaddr_change(adapter,
···
 					adapter->mdump.md_capture_size;
 	if (!adapter->mdump.md_capture_buff) {
 		adapter->mdump.md_capture_buff =
-				vmalloc(adapter->mdump.md_dump_size);
-		if (!adapter->mdump.md_capture_buff) {
-			dev_info(&adapter->pdev->dev,
-				"Unable to allocate memory for minidump "
-				"capture_buffer(%d bytes).\n",
-					adapter->mdump.md_dump_size);
+				vzalloc(adapter->mdump.md_dump_size);
+		if (!adapter->mdump.md_capture_buff)
 			return;
-		}
-		memset(adapter->mdump.md_capture_buff, 0,
-				adapter->mdump.md_dump_size);
+
 		if (netxen_collect_minidump(adapter)) {
 			adapter->mdump.has_valid_dump = 0;
 			adapter->mdump.md_dump_size = 0;

drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c

···
 	struct nx_host_sds_ring *sds_ring;
 	struct nx_host_tx_ring *tx_ring;
 	struct netxen_rx_buffer *rx_buf;
-	int ring, i, size;
+	int ring, i;
 
 	struct netxen_cmd_buffer *cmd_buf_arr;
 	struct net_device *netdev = adapter->netdev;
 	struct pci_dev *pdev = adapter->pdev;
 
-	size = sizeof(struct nx_host_tx_ring);
-	tx_ring = kzalloc(size, GFP_KERNEL);
-	if (tx_ring == NULL) {
-		dev_err(&pdev->dev, "%s: failed to allocate tx ring struct\n",
-		       netdev->name);
+	tx_ring = kzalloc(sizeof(struct nx_host_tx_ring), GFP_KERNEL);
+	if (tx_ring == NULL)
 		return -ENOMEM;
-	}
+
 	adapter->tx_ring = tx_ring;
 
 	tx_ring->num_desc = adapter->num_txd;
 	tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 
 	cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
-	if (cmd_buf_arr == NULL) {
-		dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
-		       netdev->name);
+	if (cmd_buf_arr == NULL)
 		goto err_out;
-	}
+
 	tx_ring->cmd_buf_arr = cmd_buf_arr;
 
 	recv_ctx = &adapter->recv_ctx;
 
-	size = adapter->max_rds_rings * sizeof (struct nx_host_rds_ring);
-	rds_ring = kzalloc(size, GFP_KERNEL);
-	if (rds_ring == NULL) {
-		dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
-		       netdev->name);
+	rds_ring = kcalloc(adapter->max_rds_rings,
+			   sizeof(struct nx_host_rds_ring), GFP_KERNEL);
+	if (rds_ring == NULL)
 		goto err_out;
-	}
+
 	recv_ctx->rds_rings = rds_ring;
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {

drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c

···
 		}
 
 		cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC);
-		if (cur == NULL) {
-			printk(KERN_ERR "%s: failed to add vlan ip to list\n",
-					adapter->netdev->name);
+		if (cur == NULL)
 			return;
-		}
 
 		cur->ip_addr = ifa->ifa_address;
 		list_add_tail(&cur->list, &adapter->vlan_ip_list);

drivers/net/ethernet/qlogic/qla3xxx.c

···
 	else
 		qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
 
-	qdev->lrg_buf =
-		kmalloc(qdev->num_large_buffers * sizeof(struct ql_rcv_buf_cb),
-			GFP_KERNEL);
-	if (qdev->lrg_buf == NULL) {
-		netdev_err(qdev->ndev, "qdev->lrg_buf alloc failed\n");
+	qdev->lrg_buf = kmalloc_array(qdev->num_large_buffers,
+				      sizeof(struct ql_rcv_buf_cb),
+				      GFP_KERNEL);
+	if (qdev->lrg_buf == NULL)
 		return -ENOMEM;
-	}
 
 	qdev->lrg_buf_q_alloc_virt_addr =
 		pci_alloc_consistent(qdev->pdev,

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c

···
 		size = (size + 16) & ~0xF;
 
 	p_cache = kzalloc(size, GFP_KERNEL);
-
-	if (p_cache == NULL) {
-		dev_err(&adapter->pdev->dev,
-			"Failed to allocate memory for boot loader cache\n");
+	if (p_cache == NULL)
 		return -ENOMEM;
-	}
+
 	ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
 						size / sizeof(u32));
 	if (ret) {
···
 
 	ahw->reset.seq_error = 0;
 	ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL);
-
-	if (p_dev->ahw->reset.buff == NULL) {
-		dev_err(&p_dev->pdev->dev,
-			"%s: resource allocation failed\n", __func__);
+	if (p_dev->ahw->reset.buff == NULL)
 		return -ENOMEM;
-	}
+
 	p_buff = p_dev->ahw->reset.buff;
 	addr = QLC_83XX_RESET_TEMPLATE_ADDR;
 	count = sizeof(struct qlc_83xx_reset_hdr) / sizeof(u32);

drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c

···
 	}
 
 	cur = kzalloc(sizeof(struct qlcnic_mac_list_s), GFP_ATOMIC);
-	if (cur == NULL) {
-		dev_err(&adapter->netdev->dev,
-			"failed to add mac address filter\n");
+	if (cur == NULL)
 		return -ENOMEM;
-	}
+
 	memcpy(cur->mac_addr, addr, ETH_ALEN);
 
 	if (qlcnic_sre_macaddr_change(adapter,

drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c

···
 	struct qlcnic_host_rds_ring *rds_ring;
 	struct qlcnic_host_sds_ring *sds_ring;
 	struct qlcnic_rx_buffer *rx_buf;
-	int ring, i, size;
-
-	struct net_device *netdev = adapter->netdev;
+	int ring, i;
 
 	recv_ctx = adapter->recv_ctx;
 
-	size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
-	rds_ring = kzalloc(size, GFP_KERNEL);
-	if (rds_ring == NULL) {
-		dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
+	rds_ring = kcalloc(adapter->max_rds_rings,
+			   sizeof(struct qlcnic_host_rds_ring), GFP_KERNEL);
+	if (rds_ring == NULL)
 		goto err_out;
-	}
+
 	recv_ctx->rds_rings = rds_ring;
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
···
 			break;
 		}
 		rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
-		if (rds_ring->rx_buf_arr == NULL) {
-			dev_err(&netdev->dev,
-				"Failed to allocate rx buffer ring %d\n", ring);
+		if (rds_ring->rx_buf_arr == NULL)
 			goto err_out;
-		}
 
 		INIT_LIST_HEAD(&rds_ring->free_list);
 		/*
···
 	}
 
 	buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
-	if (buf == NULL) {
-		dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
+	if (buf == NULL)
 		return -ENOMEM;
-	}
 
 	for (i = 0; i < n; i++) {
 		if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
···
 
 	entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header);
 	flt_entry = vzalloc(entry_size);
-	if (flt_entry == NULL) {
-		dev_warn(&adapter->pdev->dev, "error allocating memory\n");
+	if (flt_entry == NULL)
 		return -EIO;
-	}
 
 	ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION +
 					 sizeof(struct qlcnic_flt_header),

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

···
 		adapter->msix_entries = kcalloc(num_msix,
 						sizeof(struct msix_entry),
 						GFP_KERNEL);
-		if (!adapter->msix_entries) {
-			dev_err(&pdev->dev, "failed allocating msix_entries\n");
+		if (!adapter->msix_entries)
 			return -ENOMEM;
-		}
 	}
 
 	adapter->max_sds_rings = 1;
···
 	adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
 				GFP_KERNEL);
 	if (!adapter->recv_ctx) {
-		dev_err(&adapter->pdev->dev,
-			"Failed to allocate recv ctx resources for adapter\n");
 		err = -ENOMEM;
 		goto err_out;
 	}
···
 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
 			  struct net_device *netdev)
 {
-	int ring, size, vector, index;
+	int ring, vector, index;
 	struct qlcnic_host_tx_ring *tx_ring;
 	struct qlcnic_cmd_buffer *cmd_buf_arr;
 
-	size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
-	tx_ring = kzalloc(size, GFP_KERNEL);
-	if (tx_ring == NULL) {
-		dev_err(&netdev->dev, "failed to allocate tx rings\n");
+	tx_ring = kcalloc(adapter->max_drv_tx_rings,
+			  sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
+	if (tx_ring == NULL)
 		return -ENOMEM;
-	}
+
 	adapter->tx_ring = tx_ring;
 
 	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
···
 		tx_ring->txq = netdev_get_tx_queue(netdev, ring);
 		cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
 		if (cmd_buf_arr == NULL) {
-			dev_err(&netdev->dev,
-				"failed to allocate cmd buffer ring\n");
 			qlcnic_free_tx_rings(adapter);
 			return -ENOMEM;
 		}

drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c

···
 		return -EIO;
 
 	fw_dump->data = vzalloc(dump_size);
-	if (!fw_dump->data) {
-		dev_info(&adapter->pdev->dev,
-			 "Unable to allocate (%d KB) for fw dump\n",
-			 dump_size / 1024);
+	if (!fw_dump->data)
 		return -ENOMEM;
-	}
+
 	buffer = fw_dump->data;
 	fw_dump->size = dump_size;
 	no_entries = tmpl_hdr->num_entries;

drivers/net/ethernet/qlogic/qlge/qlge_main.c

···
 		qdev->mpi_coredump =
 			vmalloc(sizeof(struct ql_mpi_coredump));
 		if (qdev->mpi_coredump == NULL) {
-			dev_err(&pdev->dev, "Coredump alloc failed.\n");
 			err = -ENOMEM;
 			goto err_out2;
 		}

drivers/net/ethernet/rdc/r6040.c

···
 	lp->mii_bus->name = "r6040_eth_mii";
 	snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
 		dev_name(&pdev->dev), card_idx);
-	lp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+	lp->mii_bus->irq = kmalloc_array(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
 	if (!lp->mii_bus->irq) {
-		dev_err(&pdev->dev, "mii_bus irq allocation failed\n");
 		err = -ENOMEM;
 		goto err_out_mdio;
 	}

drivers/net/ethernet/renesas/sh_eth.c

···
 		mdp->rx_buf_sz += NET_IP_ALIGN;
 
 	/* Allocate RX and TX skb rings */
-	mdp->rx_skbuff = kmalloc(sizeof(*mdp->rx_skbuff) * mdp->num_rx_ring,
-				GFP_KERNEL);
+	mdp->rx_skbuff = kmalloc_array(mdp->num_rx_ring,
+				       sizeof(*mdp->rx_skbuff), GFP_KERNEL);
 	if (!mdp->rx_skbuff) {
-		dev_err(&ndev->dev, "Cannot allocate Rx skb\n");
 		ret = -ENOMEM;
 		return ret;
 	}
 
-	mdp->tx_skbuff = kmalloc(sizeof(*mdp->tx_skbuff) * mdp->num_tx_ring,
-				GFP_KERNEL);
+	mdp->tx_skbuff = kmalloc_array(mdp->num_tx_ring,
+				       sizeof(*mdp->tx_skbuff), GFP_KERNEL);
 	if (!mdp->tx_skbuff) {
-		dev_err(&ndev->dev, "Cannot allocate Tx skb\n");
 		ret = -ENOMEM;
 		goto skb_ring_free;
 	}

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

···
 	DBG(probe, INFO, "stmmac: txsize %d, rxsize %d, bfsize %d\n",
 	    txsize, rxsize, bfsize);
 
-	priv->rx_skbuff_dma = kmalloc(rxsize * sizeof(dma_addr_t), GFP_KERNEL);
-	priv->rx_skbuff =
-	    kmalloc(sizeof(struct sk_buff *) * rxsize, GFP_KERNEL);
+	priv->rx_skbuff_dma = kmalloc_array(rxsize, sizeof(dma_addr_t),
+					    GFP_KERNEL);
+	priv->rx_skbuff = kmalloc_array(rxsize, sizeof(struct sk_buff *),
+					GFP_KERNEL);
 	priv->dma_rx =
 	    (struct dma_desc *)dma_alloc_coherent(priv->device,
 						  rxsize *
 						  sizeof(struct dma_desc),
 						  &priv->dma_rx_phy,
 						  GFP_KERNEL);
-	priv->tx_skbuff = kmalloc(sizeof(struct sk_buff *) * txsize,
-				       GFP_KERNEL);
+	priv->tx_skbuff = kmalloc_array(txsize, sizeof(struct sk_buff *),
+					GFP_KERNEL);
 	priv->dma_tx =
 	    (struct dma_desc *)dma_alloc_coherent(priv->device,
 						  txsize *

drivers/net/ethernet/sun/niu.c

···
 {
 	BUILD_BUG_ON(sizeof(struct rxdma_mailbox) != 64);
 
-	rp->rxhash = kzalloc(MAX_RBR_RING_SIZE * sizeof(struct page *),
+	rp->rxhash = kcalloc(MAX_RBR_RING_SIZE, sizeof(struct page *),
 			     GFP_KERNEL);
 	if (!rp->rxhash)
 		return -ENOMEM;

drivers/net/ethernet/ti/cpsw.c

···
 	}
 	data->cpts_clock_shift = prop;
 
-	data->slave_data = kzalloc(sizeof(struct cpsw_slave_data) *
-				   data->slaves, GFP_KERNEL);
-	if (!data->slave_data) {
-		pr_err("Could not allocate slave memory.\n");
+	data->slave_data = kcalloc(data->slaves, sizeof(struct cpsw_slave_data),
+				   GFP_KERNEL);
+	if (!data->slave_data)
 		return -EINVAL;
-	}
 
 	if (of_property_read_u32(node, "cpdma_channels", &prop)) {
 		pr_err("Missing cpdma_channels property in the DT.\n");

drivers/net/ethernet/ti/davinci_mdio.c

···
 	int ret, addr;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data) {
-		dev_err(dev, "failed to alloc device data\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	data->bus = mdiobus_alloc();
 	if (!data->bus) {

drivers/net/ethernet/xilinx/ll_temac_main.c

···
 	int i;
 
 	lp->rx_skb = kcalloc(RX_BD_NUM, sizeof(*lp->rx_skb), GFP_KERNEL);
-	if (!lp->rx_skb) {
-		dev_err(&ndev->dev,
-				"can't allocate memory for DMA RX buffer\n");
+	if (!lp->rx_skb)
 		goto out;
-	}
+
 	/* allocate the tx and rx ring buffer descriptors. */
 	/* returns a virtual address and a physical address. */
 	lp->tx_bd_v = dma_alloc_coherent(ndev->dev.parent,