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Diffstat (limited to 'drivers/char/agp')
-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 @@
static struct resource *aperture_resource;
static int __initdata agp_try_unsupported = 1;
+static int agp_bridges_found;
static void amd64_tlbflush(struct agp_memory *temp)
{
@@ -489,6 +490,7 @@ static int __devinit agp_amd64_probe(struct pci_dev *pdev,
{
struct agp_bridge_data *bridge;
u8 cap_ptr;
+ int err;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
if (!cap_ptr)
@@ -536,7 +538,12 @@ static int __devinit agp_amd64_probe(struct pci_dev *pdev,
}
pci_set_drvdata(pdev, bridge);
- return agp_add_bridge(bridge);
+ err = agp_add_bridge(bridge);
+ if (err < 0)
+ return err;
+
+ agp_bridges_found++;
+ return 0;
}
static void __devexit agp_amd64_remove(struct pci_dev *pdev)
@@ -713,7 +720,11 @@ int __init agp_amd64_init(void)
if (agp_off)
return -EINVAL;
- if (pci_register_driver(&agp_amd64_pci_driver) < 0) {
+ err = pci_register_driver(&agp_amd64_pci_driver);
+ if (err < 0)
+ return err;
+
+ if (agp_bridges_found == 0) {
struct pci_dev *dev;
if (!agp_try_unsupported && !agp_try_unsupported_boot) {
printk(KERN_INFO PFX "No supported AGP bridge found.\n");