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-rw-r--r--block/blk-merge.c4
-rw-r--r--block/blk-mq.c5
2 files changed, 7 insertions, 2 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index f46c87ef951d..84f03d066cb3 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -358,11 +358,13 @@ struct bio *__bio_split_to_limits(struct bio *bio, struct queue_limits *lim,
default:
split = bio_split_rw(bio, lim, nr_segs, bs,
get_max_io_size(bio, lim) << SECTOR_SHIFT);
+ if (IS_ERR(split))
+ return NULL;
break;
}
if (split) {
- /* there isn't chance to merge the splitted bio */
+ /* there isn't chance to merge the split bio */
split->bi_opf |= REQ_NOMERGE;
blkcg_bio_issue_init(split);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 0b855e033a83..63abbe342b28 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2919,8 +2919,11 @@ void blk_mq_submit_bio(struct bio *bio)
blk_status_t ret;
bio = blk_queue_bounce(bio, q);
- if (bio_may_exceed_limits(bio, &q->limits))
+ if (bio_may_exceed_limits(bio, &q->limits)) {
bio = __bio_split_to_limits(bio, &q->limits, &nr_segs);
+ if (!bio)
+ return;
+ }
if (!bio_integrity_prep(bio))
return;