6.17-stable review patch. If anyone has any objections, please let me know.

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From: Christian König christian.koenig@amd.com

[ Upstream commit 33cc891b56b93cad1a83263eaf2e417436f70c82 ]

Otherwise accessing them can cause a crash.

Signed-off-by: Christian König christian.koenig@amd.com Tested-by: Mangesh Gadre Mangesh.Gadre@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Arunpravin Paneer Selvam Arunpravin.PaneerSelvam@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 78f9e86ccc099..832ab87eb3451 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -234,6 +234,9 @@ static umode_t amdgpu_vram_attrs_is_visible(struct kobject *kobj, !adev->gmc.vram_vendor) return 0;

+ if (!ttm_resource_manager_used(&adev->mman.vram_mgr.manager)) + return 0; + return attr->mode; }