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Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
-rw-r--r--drivers/char/agp/amd64-agp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 5aa7a586a7ff..1afb8968a342 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -725,12 +725,11 @@ static struct pci_driver agp_amd64_pci_driver = {
int __init agp_amd64_init(void)
{
int err = 0;
- static int done = 0;
if (agp_off)
return -EINVAL;
- if (done++)
+ if (gart_iommu_aperture)
return agp_bridges_found ? 0 : -ENODEV;
err = pci_register_driver(&agp_amd64_pci_driver);
@@ -771,6 +770,8 @@ int __init agp_amd64_init(void)
static void __exit agp_amd64_cleanup(void)
{
+ if (gart_iommu_aperture)
+ return;
if (aperture_resource)
release_resource(aperture_resource);
pci_unregister_driver(&agp_amd64_pci_driver);