drm/amdgpu: Disable irq on device before destroying it

Disable irq on devices before destroying them. That prevents
use-after-free memory access when unloading the driver.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index cdf7a6cde603..f59b017e4c61 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1722,6 +1722,9 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
         int i, r;
 
         amdgpu_amdkfd_device_fini(adev);
+        /* disable all interrupts */
+        amdgpu_irq_disable_all(adev);
+
         /* need to disable SMC first */
         for (i = 0; i < adev->num_ip_blocks; i++) {
                 if (!adev->ip_blocks[i].status.hw)
@@ -1773,8 +1776,6 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
                 adev->ip_blocks[i].status.hw = false;
         }
 
-        /* disable all interrupts */
-        amdgpu_irq_disable_all(adev);
 
         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
                 if (!adev->ip_blocks[i].status.sw)