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drm/ttm: use reservation_object_trylock in ttm_bo_individualize_resv v2

Fixes a false positive from might_sleep(). The reservation object is freshly
initialized, so nobody else can hold the mutex but the function is
called from atomic context.

v2: Correctly invert the check as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König 8 年之前
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共有 1 个文件被更改,包括 1 次插入1 次删除
  1. 1 1
      drivers/gpu/drm/ttm/ttm_bo.c

+ 1 - 1
drivers/gpu/drm/ttm/ttm_bo.c

@@ -403,7 +403,7 @@ static int ttm_bo_individualize_resv(struct ttm_buffer_object *bo)
 		return 0;
 
 	reservation_object_init(&bo->ttm_resv);
-	BUG_ON(reservation_object_lock(&bo->ttm_resv, NULL));
+	BUG_ON(!reservation_object_trylock(&bo->ttm_resv));
 
 	r = reservation_object_copy_fences(&bo->ttm_resv, bo->resv);
 	if (r) {