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authorMichel Dänzer <michel.daenzer@amd.com>2018-12-13 17:05:31 +0100
committerAlex Deucher <alexander.deucher@amd.com>2018-12-14 15:55:17 -0500
commita3a0ebd10a9b6cf6c33885016393729112c85083 (patch)
tree1d101bb772d3856e6766186062584b0cd7d0d6a2 /drivers
parent344e7ad467f5bd057b9d4d66adafbfa8077ccaa6 (diff)
drm/amdgpu: WARN once if amdgpu_bo_unpin is called for an unpinned BO
It indicates a pin/unpin imbalance bug somewhere. While the bug isn't necessarily in the call chain hitting this, it's at least one part involved. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index fd271f9746a2..728e15e5d68a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -912,7 +912,7 @@ int amdgpu_bo_unpin(struct amdgpu_bo *bo)
struct ttm_operation_ctx ctx = { false, false };
int r, i;
- if (!bo->pin_count) {
+ if (WARN_ON_ONCE(!bo->pin_count)) {
dev_warn(adev->dev, "%p unpin not necessary\n", bo);
return 0;
}