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drm/amdgpu: Fix NULL ptr dereference issue for non userq fences

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Add the correct fences count variable [num_fences] in the fences
array iteration to handle the userq / non-userq fences.

v2:(Christian)
  - All fences in the array either come from some reservation object
    or drm_syncobj. If any of those are NULL then there is a bug
    somewhere else.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Arunpravin Paneer Selvam
2024-12-09 23:02:28 +05:30
committed by Alex Deucher
parent 9ed335d939
commit c9e20cb005
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
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@@ -817,7 +817,7 @@ int amdgpu_userq_wait_ioctl(struct drm_device *dev, void *data,
fences[num_fences++] = fence;
}
for (i = 0, cnt = 0; i < wait_info->num_fences; i++) {
for (i = 0, cnt = 0; i < num_fences; i++) {
struct amdgpu_userq_fence_driver *fence_drv;
struct amdgpu_userq_fence *userq_fence;
u32 index;