From: Jens Axboe Date: Mon, 16 Jan 2023 15:51:05 +0000 (-0700) Subject: pktcdvd: check for NULL returna fter calling bio_split_to_limits() X-Git-Tag: v6.6.7~3559^2~14 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3e9900f3bd7ba30d60f82b162b70a1dffe4e8e24;p=platform%2Fkernel%2Flinux-starfive.git pktcdvd: check for NULL returna fter calling bio_split_to_limits() 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: 9cea62b2cbab ("block: don't allow splitting of a REQ_NOWAIT bio") Fixes: 4b83e99ee709 ("Revert "pktcdvd: remove driver."") Signed-off-by: Jens Axboe --- diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 4cea3b0..2f1a925 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -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,