drm/amdkfd: Fix doorbell initialization and finalization
Handle errors in doorbell aperture initialization instead of BUG_ON.
iounmap doorbell aperture during finalization.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index e28e818..cb7ed02 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -260,7 +260,11 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
goto kfd_gtt_sa_init_error;
}
- kfd_doorbell_init(kfd);
+ if (kfd_doorbell_init(kfd)) {
+ dev_err(kfd_device,
+ "Error initializing doorbell aperture\n");
+ goto kfd_doorbell_error;
+ }
if (kfd_topology_add_device(kfd)) {
dev_err(kfd_device, "Error adding device to topology\n");
@@ -315,6 +319,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
kfd_interrupt_error:
kfd_topology_remove_device(kfd);
kfd_topology_add_device_error:
+ kfd_doorbell_fini(kfd);
+kfd_doorbell_error:
kfd_gtt_sa_fini(kfd);
kfd_gtt_sa_init_error:
kfd->kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
@@ -332,6 +338,7 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd)
amd_iommu_free_device(kfd->pdev);
kfd_interrupt_exit(kfd);
kfd_topology_remove_device(kfd);
+ kfd_doorbell_fini(kfd);
kfd_gtt_sa_fini(kfd);
kfd->kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
}