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Date: Fri, 6 Apr 2012 12:06:37 +0200
From: Francois Romieu <romieu@...zoreil.com>
To: netdev@...r.kernel.org
Cc: "David Miller" <davem@...emloft.net>,
Grant Grundler <grundler@...isc-linux.org>
Subject: [PATCH net-next #2 23/39] uli526x: fix regions leak in driver probe error path.
Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Cc: Grant Grundler <grundler@...isc-linux.org>
---
drivers/net/ethernet/dec/tulip/uli526x.c | 48 ++++++++++++-----------------
1 files changed, 20 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index fc4001f..c9b3396 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -313,9 +313,9 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev,
goto err_out_disable;
}
- if (pci_request_regions(pdev, DRV_NAME)) {
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err < 0) {
pr_err("Failed to request PCI regions\n");
- err = -ENODEV;
goto err_out_disable;
}
@@ -323,18 +323,15 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev,
db = netdev_priv(dev);
/* Allocate Tx/Rx descriptor memory */
+ err = -ENOMEM;
+
db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
- if(db->desc_pool_ptr == NULL)
- {
- err = -ENOMEM;
- goto err_out_nomem;
- }
+ if (!db->desc_pool_ptr)
+ goto err_out_release;
+
db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
- if(db->buf_pool_ptr == NULL)
- {
- err = -ENOMEM;
- goto err_out_nomem;
- }
+ if (!db->buf_pool_ptr)
+ goto err_out_free_tx_desc;
db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
db->first_tx_desc_dma = db->desc_pool_dma_ptr;
@@ -387,7 +384,7 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev,
}
err = register_netdev (dev);
if (err)
- goto err_out_res;
+ goto err_out_free_tx_buf;
netdev_info(dev, "ULi M%04lx at pci%s, %pM, irq %d\n",
ent->driver_data >> 16, pci_name(pdev),
@@ -397,16 +394,14 @@ static int __devinit uli526x_init_one (struct pci_dev *pdev,
return 0;
-err_out_res:
+err_out_free_tx_buf:
+ pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
+ db->buf_pool_ptr, db->buf_pool_dma_ptr);
+err_out_free_tx_desc:
+ pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20,
+ db->desc_pool_ptr, db->desc_pool_dma_ptr);
+err_out_release:
pci_release_regions(pdev);
-err_out_nomem:
- if(db->desc_pool_ptr)
- pci_free_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20,
- db->desc_pool_ptr, db->desc_pool_dma_ptr);
-
- if(db->buf_pool_ptr != NULL)
- pci_free_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
- db->buf_pool_ptr, db->buf_pool_dma_ptr);
err_out_disable:
pci_disable_device(pdev);
err_out_free:
@@ -422,19 +417,16 @@ static void __devexit uli526x_remove_one (struct pci_dev *pdev)
struct net_device *dev = pci_get_drvdata(pdev);
struct uli526x_board_info *db = netdev_priv(dev);
- ULI526X_DBUG(0, "uli526x_remove_one()", 0);
-
+ unregister_netdev(dev);
pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
db->desc_pool_dma_ptr);
pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
db->buf_pool_ptr, db->buf_pool_dma_ptr);
- unregister_netdev(dev);
pci_release_regions(pdev);
- free_netdev(dev); /* free board information */
- pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
- ULI526X_DBUG(0, "uli526x_remove_one() exit", 0);
+ pci_set_drvdata(pdev, NULL);
+ free_netdev(dev);
}
--
1.7.7.6
--
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