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| author | Jens Axboe <axboe@kernel.dk> | 2023-01-04 18:51:19 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-01-04 19:05:23 +0300 |
| commit | 613b14884b8595e20b9fac4126bf627313827fbe (patch) | |
| tree | c779b681aaaeb9854bc310c3a618b8c72f376686 /drivers/md | |
| parent | 1551ed5a178ca030adc92b1eb29157b5e92bf134 (diff) | |
| download | linux-613b14884b8595e20b9fac4126bf627313827fbe.tar.xz | |
block: handle bio_split_to_limits() NULL return
This can't happen right now, but in preparation for allowing
bio_split_to_limits() returning NULL if it ended the bio, check for it
in all the callers.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 2 | ||||
| -rw-r--r-- | drivers/md/md.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index e1ea3a7bd9d9..b424a6ee27ba 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1742,6 +1742,8 @@ static void dm_split_and_process_bio(struct mapped_device *md, * otherwise associated queue_limits won't be imposed. */ bio = bio_split_to_limits(bio); + if (!bio) + return; } init_clone_info(&ci, md, map, bio, is_abnormal); diff --git a/drivers/md/md.c b/drivers/md/md.c index 775f1dde190a..8af639296b3c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -455,6 +455,8 @@ static void md_submit_bio(struct bio *bio) } bio = bio_split_to_limits(bio); + if (!bio) + return; if (mddev->ro == MD_RDONLY && unlikely(rw == WRITE)) { if (bio_sectors(bio) != 0) |