From: Kulikov Vasiliy Date: Tue, 3 Aug 2010 15:42:30 +0000 (+0400) Subject: agp: efficeon-agp: do not use PCI resources before pci_enable_device() X-Git-Tag: v3.0~3480^2~60 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=46cfc58a77de5fc8385ad87077f4dc14633e57a7;p=platform%2Fkernel%2Flinux-amlogic.git 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: // @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // Signed-off-by: Kulikov Vasiliy Signed-off-by: Dave Airlie --- diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index aa109cb..d607f53 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, 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. * 20030610 - hamish@zot.org @@ -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,