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drm/amdgpu/ttm: Fix memory leak userptr pages

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[ Upstream commit 0f6f9dd490 ]

If userptr pages have been pinned but not bounded,
they remain uncleared.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Gomez <daniel@qtec.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Gomez 2021-03-17 17:08:37 +01:00 committed by Greg Kroah-Hartman
parent 6e4ae9b0eb
commit 14637a8dfe
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -1254,13 +1254,13 @@ static void amdgpu_ttm_backend_unbind(struct ttm_bo_device *bdev,
struct amdgpu_ttm_tt *gtt = (void *)ttm; struct amdgpu_ttm_tt *gtt = (void *)ttm;
int r; int r;
if (!gtt->bound)
return;
/* if the pages have userptr pinning then clear that first */ /* if the pages have userptr pinning then clear that first */
if (gtt->userptr) if (gtt->userptr)
amdgpu_ttm_tt_unpin_userptr(bdev, ttm); amdgpu_ttm_tt_unpin_userptr(bdev, ttm);
if (!gtt->bound)
return;
if (gtt->offset == AMDGPU_BO_INVALID_OFFSET) if (gtt->offset == AMDGPU_BO_INVALID_OFFSET)
return; return;