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agp: efficeon-agp: 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>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Kulikov Vasiliy 2010-08-03 19:42:30 +04:00 committed by Dave Airlie
parent 58374713c9
commit 46cfc58a77
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/char/agp/efficeon-agp.c
View File

@ -371,6 +371,17 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
bridge->dev = pdev;
bridge->capndx = cap_ptr;
/*
* If the device has not been properly setup, the following will catch
* the problem and should stop the system from crashing.
* 20030610 - hamish@zot.org
*/
if (pci_enable_device(pdev)) {
printk(KERN_ERR PFX "Unable to Enable PCI device\n");
agp_put_bridge(bridge);
return -ENODEV;
}
/*
* The following fixes the case where the BIOS has "forgotten" to
* provide an address range for the GART.
@ -385,17 +396,6 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
}
}
/*
* If the device has not been properly setup, the following will catch
* the problem and should stop the system from crashing.
* 20030610 - hamish@zot.org
*/
if (pci_enable_device(pdev)) {
printk(KERN_ERR PFX "Unable to Enable PCI device\n");
agp_put_bridge(bridge);
return -ENODEV;
}
/* Fill in the mode register */
if (cap_ptr) {
pci_read_config_dword(pdev,