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cxgb3: do not use PCI resources before pci_enable_device()

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IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kulikov Vasiliy 2010-08-03 05:43:11 +00:00 committed by David S. Miller
parent 3cfc2c42c1
commit 7aaaaa1e44
1 changed files with 13 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/net/cxgb3/cxgb3_main.c
View File

@ -3198,17 +3198,17 @@ static int __devinit init_one(struct pci_dev *pdev,
}
}
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "cannot enable PCI device\n");
goto out;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
/* Just info, some other driver may have claimed the device. */
dev_info(&pdev->dev, "cannot obtain PCI resources\n");
return err;
}
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "cannot enable PCI device\n");
goto out_release_regions;
goto out_disable_device;
}
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
@ -3217,11 +3217,11 @@ static int __devinit init_one(struct pci_dev *pdev,
if (err) {
dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
"coherent allocations\n");
goto out_disable_device;
goto out_release_regions;
}
} else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
dev_err(&pdev->dev, "no usable DMA configuration\n");
goto out_disable_device;
goto out_release_regions;
}
pci_set_master(pdev);
@ -3234,7 +3234,7 @@ static int __devinit init_one(struct pci_dev *pdev,
adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
if (!adapter) {
err = -ENOMEM;
goto out_disable_device;
goto out_release_regions;
}
adapter->nofail_skb =
@ -3370,11 +3370,12 @@ out_free_dev:
out_free_adapter:
kfree(adapter);
out_disable_device:
pci_disable_device(pdev);
out_release_regions:
pci_release_regions(pdev);
out_disable_device:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
out:
return err;
}