From 1c65df3d7b1b311a73f5636a4ad6611f067baf1e Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Wed, 18 Jun 2014 13:44:18 +0200 Subject: floppy: format block0 read error message properly In case reading of block 0 fails, line without trailing newline is printed causing dmesg to look horrible. Signed-off-by: Jiri Kosina --- drivers/block/floppy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block') diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 8e767bb..f0c95df 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3774,7 +3774,7 @@ static void floppy_rb0_cb(struct bio *bio, int err) int drive = cbdata->drive; if (err) { - pr_info("floppy: error %d while reading block 0", err); + pr_info("floppy: error %d while reading block 0\n", err); set_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags); } complete(&cbdata->complete); -- cgit v1.1 From 54ed4ed8f9a5071a3bbae2e037376d8c02b9629b Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Wed, 25 Jun 2014 17:52:38 +0200 Subject: drbd: fix NULL pointer deref in blk_add_request_payload Discards don't have any payload. But the scsi layer still expects a bio_vec it can use internally, see sd_setup_discard_cmnd() and blk_add_request_payload(). Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg Signed-off-by: Jens Axboe --- drivers/block/drbd/drbd_receiver.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/block') diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index b6c8aaf..5b17ec8 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1337,8 +1337,11 @@ int drbd_submit_peer_request(struct drbd_device *device, return 0; } + /* Discards don't have any payload. + * But the scsi layer still expects a bio_vec it can use internally, + * see sd_setup_discard_cmnd() and blk_add_request_payload(). */ if (peer_req->flags & EE_IS_TRIM) - nr_pages = 0; /* discards don't have any payload. */ + nr_pages = 1; /* In most cases, we will only need one bio. But in case the lower * level restrictions happen to be different at this offset on this -- cgit v1.1