Commit 7c4c3960 authored by Marcin Slusarz's avatar Marcin Slusarz Committed by Dave Airlie

drm/ttm: fix ttm_bo_add_ttm(user) failure path

ttm_tt_destroy kfrees passed object, so we need to nullify
a reference to it.
Signed-off-by: default avatarMarcin Slusarz <marcin.slusarz@gmail.com>
Cc: stable@kernel.org
Reviewed-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent ba95c45a
......@@ -353,8 +353,10 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
ret = ttm_tt_set_user(bo->ttm, current,
bo->buffer_start, bo->num_pages);
if (unlikely(ret != 0))
if (unlikely(ret != 0)) {
ttm_tt_destroy(bo->ttm);
bo->ttm = NULL;
}
break;
default:
printk(KERN_ERR TTM_PFX "Illegal buffer object type\n");
......
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