Add lock before accessing dma_fence_is_signaled_locked.
Signed-off-by: Arunpravin Paneer Selvam <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
index 24d19b920100..d5b35b5df527 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
@@ -259,11 +259,13 @@ static int amdgpu_userq_fence_create(struct
amdgpu_usermode_queue *userq,
/* Check if hardware has already processed the job */
spin_lock_irqsave(&fence_drv->fence_list_lock, flags);
+ spin_lock_nested(fence->lock, SINGLE_DEPTH_NESTING);
if (!dma_fence_is_signaled_locked(fence))
list_add_tail(&userq_fence->link, &fence_drv->fences);
else
dma_fence_put(fence);
+ spin_unlock(fence->lock);
spin_unlock_irqrestore(&fence_drv->fence_list_lock, flags);
*f = fence;
--
2.43.0
