From d4e6e83651777224c0259e01dde5eb078f9e6b1d Mon Sep 17 00:00:00 2001 From: Zhengyuan Liu Date: Wed, 12 Jun 2019 14:14:46 +0800 Subject: [PATCH] dm log writes: use struct_size() to calculate size of pending_block Use struct_size() to avoid open-coded equivalent that is prone to a type mistake. Signed-off-by: Zhengyuan Liu Signed-off-by: Mike Snitzer --- drivers/md/dm-log-writes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index e549392e0ea5..0837b17e1798 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -699,7 +699,7 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio) if (discard_bio) alloc_size = sizeof(struct pending_block); else - alloc_size = sizeof(struct pending_block) + sizeof(struct bio_vec) * bio_segments(bio); + alloc_size = struct_size(block, vecs, bio_segments(bio)); block = kzalloc(alloc_size, GFP_NOIO); if (!block) { -- 2.30.2