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path: root/drivers/char/agp/amd64-agp.c
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Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
-rw-r--r--drivers/char/agp/amd64-agp.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 481ffe87c716..7345f9a9b791 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -34,6 +34,7 @@
34 34
35static struct resource *aperture_resource; 35static struct resource *aperture_resource;
36static int __initdata agp_try_unsupported = 1; 36static int __initdata agp_try_unsupported = 1;
37static int agp_bridges_found;
37 38
38static void amd64_tlbflush(struct agp_memory *temp) 39static void amd64_tlbflush(struct agp_memory *temp)
39{ 40{
@@ -489,6 +490,7 @@ static int __devinit agp_amd64_probe(struct pci_dev *pdev,
489{ 490{
490 struct agp_bridge_data *bridge; 491 struct agp_bridge_data *bridge;
491 u8 cap_ptr; 492 u8 cap_ptr;
493 int err;
492 494
493 cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP); 495 cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
494 if (!cap_ptr) 496 if (!cap_ptr)
@@ -536,7 +538,12 @@ static int __devinit agp_amd64_probe(struct pci_dev *pdev,
536 } 538 }
537 539
538 pci_set_drvdata(pdev, bridge); 540 pci_set_drvdata(pdev, bridge);
539 return agp_add_bridge(bridge); 541 err = agp_add_bridge(bridge);
542 if (err < 0)
543 return err;
544
545 agp_bridges_found++;
546 return 0;
540} 547}
541 548
542static void __devexit agp_amd64_remove(struct pci_dev *pdev) 549static void __devexit agp_amd64_remove(struct pci_dev *pdev)
@@ -713,7 +720,11 @@ int __init agp_amd64_init(void)
713 720
714 if (agp_off) 721 if (agp_off)
715 return -EINVAL; 722 return -EINVAL;
716 if (pci_register_driver(&agp_amd64_pci_driver) < 0) { 723 err = pci_register_driver(&agp_amd64_pci_driver);
724 if (err < 0)
725 return err;
726
727 if (agp_bridges_found == 0) {
717 struct pci_dev *dev; 728 struct pci_dev *dev;
718 if (!agp_try_unsupported && !agp_try_unsupported_boot) { 729 if (!agp_try_unsupported && !agp_try_unsupported_boot) {
719 printk(KERN_INFO PFX "No supported AGP bridge found.\n"); 730 printk(KERN_INFO PFX "No supported AGP bridge found.\n");