block: Fix BUG_ON when pi errors occur

When getting a pi error we get to bio_integrity_end_io with
bi_remaining already decremented to 0 where we will eventually
need to call bio_endio with restored original bio completion handler.
Calling bio_endio invokes a BUG_ON(). We should call bio_endio_nodec
instead, like what is done in bio_integrity_verify_fn.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

block/bio-integrity.c

@@ -520,7 +520,7 @@ void bio_integrity_endio(struct bio *bio, int error)
 	 */
 	if (error) {
 		bio->bi_end_io = bip->bip_end_io;
-		bio_endio(bio, error);
+		bio_endio_nodec(bio, error);
 
 		return;
 	}