drm/ast: Simplify function ast_bo_unpin()

Just a code refactoring, no functional change.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c
index 5808498..0b4c574 100644 (file)
--- a/drivers/gpu/drm/ast/ast_ttm.c
+++ b/drivers/gpu/drm/ast/ast_ttm.c
@@ -376,7 +376,7 @@ int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr)
 
 int ast_bo_unpin(struct ast_bo *bo)
 {
-       int i, ret;
+       int i;
        if (!bo->pin_count) {
                DRM_ERROR("unpin bad %p\n", bo);
                return 0;
@@ -387,11 +387,7 @@ int ast_bo_unpin(struct ast_bo *bo)
 
        for (i = 0; i < bo->placement.num_placement ; i++)
                bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
-       ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
-       if (ret)
-               return ret;
-
-       return 0;
+       return ttm_bo_validate(&bo->bo, &bo->placement, false, false);
 }
 
 int ast_bo_push_sysram(struct ast_bo *bo)