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drm/radeon/ttm: Fix memory leak userptr pages

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[ Upstream commit 5aeaa43e0e ]

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 2021-03-18 09:32:36 +01:00 • committed by Greg Kroah-Hartman
commit bcefa89b3e
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/radeon/radeon_ttm.c
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@ -566,13 +566,14 @@ static void radeon_ttm_backend_unbind(struct ttm_bo_device *bdev, struct ttm_tt
struct radeon_ttm_tt *gtt = (void *)ttm;
struct radeon_device *rdev = radeon_get_rdev(bdev);
if (gtt->userptr)
radeon_ttm_tt_unpin_userptr(bdev, ttm);
if (!gtt->bound)
return;
radeon_gart_unbind(rdev, gtt->offset, ttm->num_pages);
if (gtt->userptr)
radeon_ttm_tt_unpin_userptr(bdev, ttm);
gtt->bound = false;
}