From: Christian König <christian.koenig@xxxxxxx> [ Upstream commit 73a88e4ce31055c415f1ddb55e3f08c9393cf4e3 ] The busy BO might actually be already deleted, so grab only a list reference. Signed-off-by: Christian König <christian.koenig@xxxxxxx> Reviewed-by: Thomas Hellström <thellstrom@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/332877/ Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpu/drm/ttm/ttm_bo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 58c403eda04e7..c2df735a8f82c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -874,11 +874,11 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev, if (!bo) { if (busy_bo) - ttm_bo_get(busy_bo); + kref_get(&busy_bo->list_kref); spin_unlock(&glob->lru_lock); ret = ttm_mem_evict_wait_busy(busy_bo, ctx, ticket); if (busy_bo) - ttm_bo_put(busy_bo); + kref_put(&busy_bo->list_kref, ttm_bo_release_list); return ret; } -- 2.20.1
