Commit 47cb905d authored by Kulikov Vasiliy's avatar Kulikov Vasiliy Committed by John W. Linville

rt2x00: do not use PCI resources before pci_enable_device()

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: default avatarKulikov Vasiliy <segooon@gmail.com>
Acked-by: default avatarGertjan van Wingerde <gwingerde@gmail.com>
Acked-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 93c08c32
......@@ -240,16 +240,16 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
struct rt2x00_dev *rt2x00dev;
int retval;
retval = pci_request_regions(pci_dev, pci_name(pci_dev));
retval = pci_enable_device(pci_dev);
if (retval) {
ERROR_PROBE("PCI request regions failed.\n");
ERROR_PROBE("Enable device failed.\n");
return retval;
}
retval = pci_enable_device(pci_dev);
retval = pci_request_regions(pci_dev, pci_name(pci_dev));
if (retval) {
ERROR_PROBE("Enable device failed.\n");
goto exit_release_regions;
ERROR_PROBE("PCI request regions failed.\n");
goto exit_disable_device;
}
pci_set_master(pci_dev);
......@@ -260,14 +260,14 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
if (dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32))) {
ERROR_PROBE("PCI DMA not supported.\n");
retval = -EIO;
goto exit_disable_device;
goto exit_release_regions;
}
hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
if (!hw) {
ERROR_PROBE("Failed to allocate hardware.\n");
retval = -ENOMEM;
goto exit_disable_device;
goto exit_release_regions;
}
pci_set_drvdata(pci_dev, hw);
......@@ -300,13 +300,12 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
exit_free_device:
ieee80211_free_hw(hw);
exit_disable_device:
if (retval != -EBUSY)
pci_disable_device(pci_dev);
exit_release_regions:
pci_release_regions(pci_dev);
exit_disable_device:
pci_disable_device(pci_dev);
pci_set_drvdata(pci_dev, NULL);
return retval;
......
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