diff options
author | Kulikov Vasiliy <segooon@gmail.com> | 2010-08-03 11:42:30 -0400 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2010-08-04 22:28:21 -0400 |
commit | 46cfc58a77de5fc8385ad87077f4dc14633e57a7 (patch) | |
tree | 43f85886cea7113741f9bb6cd1cf5fa3001f12e5 | |
parent | 58374713c9dfb4d231f8c56cac089f6fbdedc2ec (diff) |
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>
-rw-r--r-- | drivers/char/agp/efficeon-agp.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index aa109cbe0e6e..d607f53d8afc 100644 --- a/drivers/char/agp/efficeon-agp.c +++ b/drivers/char/agp/efficeon-agp.c | |||
@@ -372,6 +372,17 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev, | |||
372 | bridge->capndx = cap_ptr; | 372 | bridge->capndx = cap_ptr; |
373 | 373 | ||
374 | /* | 374 | /* |
375 | * If the device has not been properly setup, the following will catch | ||
376 | * the problem and should stop the system from crashing. | ||
377 | * 20030610 - hamish@zot.org | ||
378 | */ | ||
379 | if (pci_enable_device(pdev)) { | ||
380 | printk(KERN_ERR PFX "Unable to Enable PCI device\n"); | ||
381 | agp_put_bridge(bridge); | ||
382 | return -ENODEV; | ||
383 | } | ||
384 | |||
385 | /* | ||
375 | * The following fixes the case where the BIOS has "forgotten" to | 386 | * The following fixes the case where the BIOS has "forgotten" to |
376 | * provide an address range for the GART. | 387 | * provide an address range for the GART. |
377 | * 20030610 - hamish@zot.org | 388 | * 20030610 - hamish@zot.org |
@@ -385,17 +396,6 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev, | |||
385 | } | 396 | } |
386 | } | 397 | } |
387 | 398 | ||
388 | /* | ||
389 | * If the device has not been properly setup, the following will catch | ||
390 | * the problem and should stop the system from crashing. | ||
391 | * 20030610 - hamish@zot.org | ||
392 | */ | ||
393 | if (pci_enable_device(pdev)) { | ||
394 | printk(KERN_ERR PFX "Unable to Enable PCI device\n"); | ||
395 | agp_put_bridge(bridge); | ||
396 | return -ENODEV; | ||
397 | } | ||
398 | |||
399 | /* Fill in the mode register */ | 399 | /* Fill in the mode register */ |
400 | if (cap_ptr) { | 400 | if (cap_ptr) { |
401 | pci_read_config_dword(pdev, | 401 | pci_read_config_dword(pdev, |