diff options
| author | Friedrich Vock <friedrich.vock@gmx.de> | 2024-05-14 09:06:38 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-05-17 17:40:36 -0400 |
| commit | 0cdb3f9740844b9d95ca413e3fcff11f81223ecf (patch) | |
| tree | 70b772b873ed8705f3ac20f1ae9ae5db9afe28c3 /drivers/gpu | |
| parent | ce798376ef6764de51d8f4684ae525b55df295fa (diff) | |
drm/amdgpu: Check if NBIO funcs are NULL in amdgpu_device_baco_exit
The special case for VM passthrough doesn't check adev->nbio.funcs
before dereferencing it. If GPUs that don't have an NBIO block are
passed through, this leads to a NULL pointer dereference on startup.
Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de>
Fixes: 1bece222eabe ("drm/amdgpu: Clear doorbell interrupt status for Sienna Cichlid")
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 00fe3c2d5431..e72e774d17e6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -6167,7 +6167,7 @@ int amdgpu_device_baco_exit(struct drm_device *dev) adev->nbio.funcs->enable_doorbell_interrupt) adev->nbio.funcs->enable_doorbell_interrupt(adev, true); - if (amdgpu_passthrough(adev) && + if (amdgpu_passthrough(adev) && adev->nbio.funcs && adev->nbio.funcs->clear_doorbell_interrupt) adev->nbio.funcs->clear_doorbell_interrupt(adev); |