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x86: intel_ips: 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: Kulikov Vasiliy <segooon@gmail.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Kulikov Vasiliy 2010-08-03 19:44:16 +04:00 committed by Matthew Garrett
parent da5cabf80e
commit 5629236b31
1 changed files with 6 additions and 5 deletions
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11
drivers/platform/x86/intel_ips.c
View File

@ -1432,6 +1432,12 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
spin_lock_init(&ips->turbo_status_lock);
ret = pci_enable_device(dev);
if (ret) {
dev_err(&dev->dev, "can't enable PCI device, aborting\n");
goto error_free;
}
if (!pci_resource_start(dev, 0)) {
dev_err(&dev->dev, "TBAR not assigned, aborting\n");
ret = -ENXIO;
@ -1444,11 +1450,6 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
goto error_free;
}
ret = pci_enable_device(dev);
if (ret) {
dev_err(&dev->dev, "can't enable PCI device, aborting\n");
goto error_free;
}
ips->regmap = ioremap(pci_resource_start(dev, 0),
pci_resource_len(dev, 0));