From 3cd3e731f34ff2f021165aeefd640acba9dd0993 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Wed, 6 Apr 2022 16:58:24 -0400 Subject: [PATCH] drm/amdkfd: Fix NULL pointer dereference Check that adev->gfx.ras is valid before using it. Fixes: 6475ae2b742876 ("drm/amdgpu: add UTCL2 RAS poison query for Aldebaran (v2)") CC: Tao Zhou Signed-off-by: Felix Kuehling Reviewed-by: Mukul Joshi Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index c18c4be..64c6664 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -727,7 +727,7 @@ void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev, bo bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev) { - if (adev->gfx.ras->query_utcl2_poison_status) + if (adev->gfx.ras && adev->gfx.ras->query_utcl2_poison_status) return adev->gfx.ras->query_utcl2_poison_status(adev); else return false; -- 2.7.4