From: "monk.liu" monk.liu@amd.com
Fixing a memory leak with userptrs.
Signed-off-by: monk.liu monk.liu@amd.com Signed-off-by: Christian König christian.koenig@amd.com CC: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_ttm.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index b292aca..e661841 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -606,13 +606,18 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm) dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction);
for_each_sg(ttm->sg->sgl, sg, ttm->sg->nents, i) { + int len = sg->length >> PAGE_SHIFT; struct page *page = sg_page(sg); + while (len > 0) { + if (!(gtt->userflags & RADEON_GEM_USERPTR_READONLY)) + set_page_dirty(page);
- if (!(gtt->userflags & RADEON_GEM_USERPTR_READONLY)) - set_page_dirty(page); + mark_page_accessed(page); + page_cache_release(page);
- mark_page_accessed(page); - page_cache_release(page); + page++; + len--; + } }
sg_free_table(ttm->sg);