[PATCH 4/9] block: use bio_release_pages in bio_map_user_iov

[Christoph Hellwig <hch@xxxxxx>]

Use bio_release_pages instead of open coding it.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 block/bio.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/block/bio.c b/block/bio.c
index 20a16347bcbb..a96d33d2de44 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1362,8 +1362,6 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 	int j;
 	struct bio *bio;
 	int ret;
-	struct bio_vec *bvec;
-	struct bvec_iter_all iter_all;
 
 	if (!iov_iter_count(iter))
 		return ERR_PTR(-EINVAL);
@@ -1430,9 +1428,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 	return bio;
 
  out_unmap:
-	bio_for_each_segment_all(bvec, bio, iter_all) {
-		put_page(bvec->bv_page);
-	}
+	bio_release_pages(bio, false);
 	bio_put(bio);
 	return ERR_PTR(ret);
 }
-- 
2.20.1