drivers: net: Remove remaining alloc/OOM messages

alloc failures already get standardized OOM
messages and a dump_stack.

For the affected mallocs around these OOM messages:

Converted kmallocs with multiplies to kmalloc_array.
Converted a kmalloc/memcpy to kmemdup.
Removed now unused stack variables.
Removed unnecessary parentheses.
Neatened alignment.

Signed-off-by: Joe Perches <[e-mail]>
Acked-by: Arend van Spriel <[e-mail]>
Acked-by: Marc Kleine-Budde <[e-mail]>
Acked-by: John W. Linville <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/can/usb/ems_usb.c

···
 
 	dev->tx_msg_buffer = kzalloc(CPC_HEADER_SIZE +
 				     sizeof(struct ems_cpc_msg), GFP_KERNEL);
-	if (!dev->tx_msg_buffer) {
-		dev_err(&intf->dev, "Couldn't alloc Tx buffer\n");
+	if (!dev->tx_msg_buffer)
 		goto cleanup_intr_in_buffer;
-	}
 
 	usb_set_intfdata(intf, dev);
 

drivers/net/ethernet/amd/pcnet32.c

···
 	}
 	memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
 
-	new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
-				GFP_ATOMIC);
-	if (!new_dma_addr_list) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	new_dma_addr_list = kcalloc(1 << size, sizeof(dma_addr_t),
+				    GFP_ATOMIC);
+	if (!new_dma_addr_list)
 		goto free_new_tx_ring;
-	}
 
-	new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
-				GFP_ATOMIC);
-	if (!new_skb_list) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	new_skb_list = kcalloc(1 << size, sizeof(struct sk_buff *),
+			       GFP_ATOMIC);
+	if (!new_skb_list)
 		goto free_new_lists;
-	}
 
 	kfree(lp->tx_skbuff);
 	kfree(lp->tx_dma_addr);
···
 	}
 	memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size));
 
-	new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
-				GFP_ATOMIC);
-	if (!new_dma_addr_list) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	new_dma_addr_list = kcalloc(1 << size, sizeof(dma_addr_t), GFP_ATOMIC);
+	if (!new_dma_addr_list)
 		goto free_new_rx_ring;
-	}
 
-	new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
-				GFP_ATOMIC);
-	if (!new_skb_list) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	new_skb_list = kcalloc(1 << size, sizeof(struct sk_buff *),
+			       GFP_ATOMIC);
+	if (!new_skb_list)
 		goto free_new_lists;
-	}
 
 	/* first copy the current receive buffers */
 	overlap = min(size, lp->rx_ring_size);
···
 
 	lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
 				  GFP_ATOMIC);
-	if (!lp->tx_dma_addr) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	if (!lp->tx_dma_addr)
 		return -ENOMEM;
-	}
 
 	lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
 				  GFP_ATOMIC);
-	if (!lp->rx_dma_addr) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	if (!lp->rx_dma_addr)
 		return -ENOMEM;
-	}
 
 	lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
 				GFP_ATOMIC);
-	if (!lp->tx_skbuff) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	if (!lp->tx_skbuff)
 		return -ENOMEM;
-	}
 
 	lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
 				GFP_ATOMIC);
-	if (!lp->rx_skbuff) {
-		netif_err(lp, drv, dev, "Memory allocation failed\n");
+	if (!lp->rx_skbuff)
 		return -ENOMEM;
-	}
 
 	return 0;
 }

drivers/net/ethernet/freescale/gianfar.c

···
 	/* Setup the skbuff rings */
 	for (i = 0; i < priv->num_tx_queues; i++) {
 		tx_queue = priv->tx_queue[i];
-		tx_queue->tx_skbuff = kmalloc(sizeof(*tx_queue->tx_skbuff) *
-					      tx_queue->tx_ring_size,
-					      GFP_KERNEL);
-		if (!tx_queue->tx_skbuff) {
-			netif_err(priv, ifup, ndev,
-				  "Could not allocate tx_skbuff\n");
+		tx_queue->tx_skbuff =
+			kmalloc_array(tx_queue->tx_ring_size,
+				      sizeof(*tx_queue->tx_skbuff),
+				      GFP_KERNEL);
+		if (!tx_queue->tx_skbuff)
 			goto cleanup;
-		}
 
 		for (k = 0; k < tx_queue->tx_ring_size; k++)
 			tx_queue->tx_skbuff[k] = NULL;
···
 
 	for (i = 0; i < priv->num_rx_queues; i++) {
 		rx_queue = priv->rx_queue[i];
-		rx_queue->rx_skbuff = kmalloc(sizeof(*rx_queue->rx_skbuff) *
-					      rx_queue->rx_ring_size,
-					      GFP_KERNEL);
-
-		if (!rx_queue->rx_skbuff) {
-			netif_err(priv, ifup, ndev,
-				  "Could not allocate rx_skbuff\n");
+		rx_queue->rx_skbuff =
+			kmalloc_array(rx_queue->rx_ring_size,
+				      sizeof(*rx_queue->rx_skbuff),
+				      GFP_KERNEL);
+		if (!rx_queue->rx_skbuff)
 			goto cleanup;
-		}
 
 		for (j = 0; j < rx_queue->rx_ring_size; j++)
 			rx_queue->rx_skbuff[j] = NULL;

drivers/net/ethernet/intel/e1000/e1000_main.c

···
 
 	size = sizeof(struct e1000_buffer) * txdr->count;
 	txdr->buffer_info = vzalloc(size);
-	if (!txdr->buffer_info) {
-		e_err(probe, "Unable to allocate memory for the Tx descriptor "
-		      "ring\n");
+	if (!txdr->buffer_info)
 		return -ENOMEM;
-	}
 
 	/* round up to nearest 4K */
 
···
 
 	size = sizeof(struct e1000_buffer) * rxdr->count;
 	rxdr->buffer_info = vzalloc(size);
-	if (!rxdr->buffer_info) {
-		e_err(probe, "Unable to allocate memory for the Rx descriptor "
-		      "ring\n");
+	if (!rxdr->buffer_info)
 		return -ENOMEM;
-	}
 
 	desc_len = sizeof(struct e1000_rx_desc);
 
···
 	int mta_reg_count = E1000_NUM_MTA_REGISTERS;
 	u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC);
 
-	if (!mcarray) {
-		e_err(probe, "memory allocation failed\n");
+	if (!mcarray)
 		return;
-	}
 
 	/* Check for Promiscuous and All Multicast modes */
 

drivers/net/ethernet/intel/ixgb/ixgb_main.c

···
 
 	size = sizeof(struct ixgb_buffer) * txdr->count;
 	txdr->buffer_info = vzalloc(size);
-	if (!txdr->buffer_info) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "Unable to allocate transmit descriptor ring memory\n");
+	if (!txdr->buffer_info)
 		return -ENOMEM;
-	}
 
 	/* round up to nearest 4K */
 
···
 
 	size = sizeof(struct ixgb_buffer) * rxdr->count;
 	rxdr->buffer_info = vzalloc(size);
-	if (!rxdr->buffer_info) {
-		netif_err(adapter, probe, adapter->netdev,
-			  "Unable to allocate receive descriptor ring\n");
+	if (!rxdr->buffer_info)
 		return -ENOMEM;
-	}
 
 	/* Round up to nearest 4K */
 

drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c

···
 
 	/* Extra buffer to be shared by all DDPs for HW work around */
 	buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_ATOMIC);
-	if (!buffer) {
-		e_err(drv, "failed to allocate extra DDP buffer\n");
+	if (!buffer)
 		return -ENOMEM;
-	}
 
 	dma = dma_map_single(dev, buffer, IXGBE_FCBUFF_MIN, DMA_FROM_DEVICE);
 	if (dma_mapping_error(dev, dma)) {

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

···
 	spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 	spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 	if (!spec_l2 || !spec_l3) {
-		en_err(priv, "Fail to alloc ethtool rule.\n");
 		err = -ENOMEM;
 		goto free_spec;
 	}
···
 	spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 	spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
 	if (!spec_l2 || !spec_l3 || !spec_l4) {
-		en_err(priv, "Fail to alloc ethtool rule.\n");
 		err = -ENOMEM;
 		goto free_spec;
 	}

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

···
 	netdev_for_each_mc_addr(ha, dev) {
 		tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC);
 		if (!tmp) {
-			en_err(priv, "failed to allocate multicast list\n");
 			mlx4_en_clear_list(dev);
 			return;
 		}
···
 			}
 		}
 		if (!found) {
-			new_mc = kmalloc(sizeof(struct mlx4_en_mc_list),
+			new_mc = kmemdup(src_tmp,
+					 sizeof(struct mlx4_en_mc_list),
 					 GFP_KERNEL);
-			if (!new_mc) {
-				en_err(priv, "Failed to allocate current multicast list\n");
+			if (!new_mc)
 				return;
-			}
-			memcpy(new_mc, src_tmp,
-			       sizeof(struct mlx4_en_mc_list));
+
 			new_mc->action = MCLIST_ADD;
 			list_add_tail(&new_mc->list, dst);
 		}

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

···
 	struct mlx4_qp_context *context;
 	int err = 0;
 
-	context = kmalloc(sizeof *context , GFP_KERNEL);
-	if (!context) {
-		en_err(priv, "Failed to allocate qp context\n");
+	context = kmalloc(sizeof(*context), GFP_KERNEL);
+	if (!context)
 		return -ENOMEM;
-	}
 
 	err = mlx4_qp_alloc(mdev->dev, qpn, qp);
 	if (err) {

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

···
 		/*
 		 * Allocate small buffer queue control blocks.
 		 */
-		rx_ring->sbq =
-		    kmalloc(rx_ring->sbq_len * sizeof(struct bq_desc),
-			    GFP_KERNEL);
-		if (rx_ring->sbq == NULL) {
-			netif_err(qdev, ifup, qdev->ndev,
-				  "Small buffer queue control block allocation failed.\n");
+		rx_ring->sbq = kmalloc_array(rx_ring->sbq_len,
+					     sizeof(struct bq_desc),
+					     GFP_KERNEL);
+		if (rx_ring->sbq == NULL)
 			goto err_mem;
-		}
 
 		ql_init_sbq_ring(qdev, rx_ring);
 	}
···
 		/*
 		 * Allocate large buffer queue control blocks.
 		 */
-		rx_ring->lbq =
-		    kmalloc(rx_ring->lbq_len * sizeof(struct bq_desc),
-			    GFP_KERNEL);
-		if (rx_ring->lbq == NULL) {
-			netif_err(qdev, ifup, qdev->ndev,
-				  "Large buffer queue control block allocation failed.\n");
+		rx_ring->lbq = kmalloc_array(rx_ring->lbq_len,
+					     sizeof(struct bq_desc),
+					     GFP_KERNEL);
+		if (rx_ring->lbq == NULL)
 			goto err_mem;
-		}
 
 		ql_init_lbq_ring(qdev, rx_ring);
 	}

drivers/net/ethernet/smsc/smsc9420.c

···
 
 	BUG_ON(!pd->tx_ring);
 
-	pd->tx_buffers = kmalloc((sizeof(struct smsc9420_ring_info) *
-		TX_RING_SIZE), GFP_KERNEL);
-	if (!pd->tx_buffers) {
-		smsc_warn(IFUP, "Failed to allocated tx_buffers");
+	pd->tx_buffers = kmalloc_array(TX_RING_SIZE,
+				       sizeof(struct smsc9420_ring_info),
+				       GFP_KERNEL);
+	if (!pd->tx_buffers)
 		return -ENOMEM;
-	}
 
 	/* Initialize the TX Ring */
 	for (i = 0; i < TX_RING_SIZE; i++) {

drivers/net/usb/pegasus.c

···
 	DECLARE_WAITQUEUE(wait, current);
 
 	buffer = kmalloc(size, GFP_KERNEL);
-	if (!buffer) {
-		netif_warn(pegasus, drv, pegasus->net,
-			   "out of memory in %s\n", __func__);
+	if (!buffer)
 		return -ENOMEM;
-	}
+
 	add_wait_queue(&pegasus->ctrl_wait, &wait);
 	set_current_state(TASK_UNINTERRUPTIBLE);
 	while (pegasus->flags & ETH_REGS_CHANGED)

drivers/net/wireless/ath/ath9k/htc_drv_txrx.c

···
 
 int ath9k_rx_init(struct ath9k_htc_priv *priv)
 {
-	struct ath_hw *ah = priv->ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath9k_htc_rxbuf *rxbuf;
 	int i = 0;
 
 	INIT_LIST_HEAD(&priv->rx.rxbuf);
 	spin_lock_init(&priv->rx.rxbuflock);
 
 	for (i = 0; i < ATH9K_HTC_RXBUF; i++) {
-		rxbuf = kzalloc(sizeof(struct ath9k_htc_rxbuf), GFP_KERNEL);
-		if (rxbuf == NULL) {
-			ath_err(common, "Unable to allocate RX buffers\n");
+		struct ath9k_htc_rxbuf *rxbuf =
+			kzalloc(sizeof(struct ath9k_htc_rxbuf), GFP_KERNEL);
+		if (rxbuf == NULL)
 			goto err;
-		}
+
 		list_add_tail(&rxbuf->list, &priv->rx.rxbuf);
 	}
 

drivers/net/wireless/ath/ath9k/hw.c

···
 	struct ath_gen_timer *timer;
 
 	timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
-
-	if (timer == NULL) {
-		ath_err(ath9k_hw_common(ah),
-			"Failed to allocate memory for hw timer[%d]\n",
-			timer_index);
+	if (timer == NULL)
 		return NULL;
-	}
 
 	/* allocate a hardware generic timer slot */
 	timer_table->timers[timer_index] = timer;

drivers/net/wireless/ath/ath9k/rc.c

···
 
 static void *ath_rate_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
 {
-	struct ath_softc *sc = priv;
-	struct ath_rate_priv *rate_priv;
-
-	rate_priv = kzalloc(sizeof(struct ath_rate_priv), gfp);
-	if (!rate_priv) {
-		ath_err(ath9k_hw_common(sc->sc_ah),
-			"Unable to allocate private rc structure\n");
-		return NULL;
-	}
-
-	return rate_priv;
+	return kzalloc(sizeof(struct ath_rate_priv), gfp);
 }
 
 static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta,

drivers/net/wireless/ath/wil6210/txrx.c

···
 	vring->swtail = 0;
 	vring->ctx = kzalloc(vring->size * sizeof(vring->ctx[0]), GFP_KERNEL);
 	if (!vring->ctx) {
-		wil_err(wil, "vring_alloc [%d] failed to alloc ctx mem\n",
-			vring->size);
 		vring->va = NULL;
 		return -ENOMEM;
 	}

drivers/net/wireless/ath/wil6210/wmi.c

···
 		evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
 					     event.wmi) + len, 4),
 			      GFP_KERNEL);
-		if (!evt) {
-			wil_err(wil, "kmalloc for WMI event (%d) failed\n",
-				len);
+		if (!evt)
 			return;
-		}
+
 		evt->event.hdr = hdr;
 		cmd = (void *)&evt->event.wmi;
 		wil_memcpy_fromio_32(cmd, src, len);
···
 	int rc;
 	u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
 	struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
-	if (!cmd) {
-		wil_err(wil, "kmalloc(%d) failed\n", len);
+	if (!cmd)
 		return -ENOMEM;
-	}
 
 	cmd->mgmt_frm_type = type;
 	/* BUG: FW API define ieLen as u8. Will fix FW */

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

···
 
 	if (bus->rxblen)
 		buf = vzalloc(bus->rxblen);
-	if (!buf) {
-		brcmf_err("no memory for control frame\n");
+	if (!buf)
 		goto done;
-	}
+
 	rbuf = bus->rxbuf;
 	pad = ((unsigned long)rbuf % BRCMF_SDALIGN);
 	if (pad)

drivers/net/wireless/brcm80211/brcmfmac/usb.c

···
 	int i;
 	struct brcmf_usbreq *req, *reqs;
 
-	reqs = kzalloc(sizeof(struct brcmf_usbreq) * qsize, GFP_ATOMIC);
-	if (reqs == NULL) {
-		brcmf_err("fail to allocate memory!\n");
+	reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
+	if (reqs == NULL)
 		return NULL;
-	}
+
 	req = reqs;
 
 	for (i = 0; i < qsize; i++) {

drivers/net/wireless/mwl8k.c

···
 
 	rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
 	if (rxq->buf == NULL) {
-		wiphy_err(hw->wiphy, "failed to alloc RX skbuff list\n");
 		pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
 		return -ENOMEM;
 	}
···
 
 	txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
 	if (txq->skb == NULL) {
-		wiphy_err(hw->wiphy, "failed to alloc TX skbuff list\n");
 		pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
 		return -ENOMEM;
 	}