The assignment and operation there will be overwritten later, so it should be deleted. The clang_analyzer complains as follows: drivers/block/loop.c:2330:2 warning: Value stored to 'err' is never read Reported-by: Zeal Robot <zealci@xxxxxxxxxx> Signed-off-by: luo penghao <luo.penghao@xxxxxxxxxx> --- drivers/block/loop.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 1f91bd4..941b482 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2329,7 +2329,6 @@ static int loop_add(int i) goto out_free_dev; i = err; - err = -ENOMEM; lo->tag_set.ops = &loop_mq_ops; lo->tag_set.nr_hw_queues = 1; lo->tag_set.queue_depth = 128; -- 2.15.2