[PATCH] drm/radeon/ttm: Fix memory leak userptr pages

Daniel Gomez
2021-03-18T08:35:47Z

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

Signed-off-by: Daniel Gomez <daniel@qtec.com>
---
drivers/gpu/drm/radeon/radeon_ttm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index e8c66d10478f..bbcc6264d48f 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -485,13 +485,14 @@ 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;
}

--
2.30.2