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authorJens Axboe <axboe@kernel.dk>2023-01-04 08:51:19 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-18 11:58:33 +0100
commit73a630b359c852d6edc113588c513ddbcd3be47a (patch)
tree8a98324852006f73365c408598c1ee337b88a534 /drivers/block/drbd
parente62e6258ab140b55bbef1f0d288263b75e2f0c20 (diff)
block: handle bio_split_to_limits() NULL return
commit 613b14884b8595e20b9fac4126bf627313827fbe upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block/drbd')
-rw-r--r--drivers/block/drbd/drbd_req.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 7f9bcc82fc9c..d700bf06b534 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1607,6 +1607,8 @@ void drbd_submit_bio(struct bio *bio)
struct drbd_device *device = bio->bi_bdev->bd_disk->private_data;
bio = bio_split_to_limits(bio);
+ if (!bio)
+ return;
/*
* what we "blindly" assume: