drm/ttm: fix unreachable code.

None of the in-tree drivers use user objects yet so this wasn't hitting
us.

Stanse found unreachable code in ttm_bo_add_ttm:
http://decibel.fi.muni.cz/~xslaby/stanse/error.cgi?db=32&id=714#l238

Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 87c0625..e13fd23 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -275,9 +275,10 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
                bo->ttm = ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
                                        page_flags | TTM_PAGE_FLAG_USER,
                                        glob->dummy_read_page);
-               if (unlikely(bo->ttm == NULL))
+               if (unlikely(bo->ttm == NULL)) {
                        ret = -ENOMEM;
-               break;
+                       break;
+               }
 
                ret = ttm_tt_set_user(bo->ttm, current,
                                      bo->buffer_start, bo->num_pages);