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pktcdvd: check for NULL returna fter calling bio_split_to_limits()

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The revert of the removal of this driver happened after we fixed up
the split limits for NOWAIT issue, hence it got missed. Ensure that
we check for a NULL bio after splitting, in case it should be retried.

Marking this as fixing both commits, so that stable backport will do
this correctly.

Cc: stable@vger.kernel.org
Fixes: 9cea62b2cb ("block: don't allow splitting of a REQ_NOWAIT bio")
Fixes: 4b83e99ee7 ("Revert "pktcdvd: remove driver."")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2023-01-16 08:51:05 -07:00
parent 216f764716
commit 3e9900f3bd
1 changed files with 2 additions and 0 deletions
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2
drivers/block/pktcdvd.c
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@ -2400,6 +2400,8 @@ static void pkt_submit_bio(struct bio *bio)
struct bio *split;
bio = bio_split_to_limits(bio);
if (!bio)
return;
pkt_dbg(2, pd, "start = %6llx stop = %6llx\n",
(unsigned long long)bio->bi_iter.bi_sector,