From 2e64a0f92830791f160274c46aef3678fabcf044 Mon Sep 17 00:00:00 2001 From: Dmitry Monakhov Date: Fri, 19 Oct 2007 22:38:41 +0100 Subject: [PATCH] dm delay: fix ctr error paths Add missing 'dm_put_device' to dm-delay target constructor. Signed-off-by: Dmitry Monakhov Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon --- drivers/md/dm-delay.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c index 6928c136d3c..0fd1f7c2e16 100644 --- a/drivers/md/dm-delay.c +++ b/drivers/md/dm-delay.c @@ -163,34 +163,32 @@ static int delay_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad; } - if (argc == 3) { - dc->dev_write = NULL; + dc->dev_write = NULL; + if (argc == 3) goto out; - } if (sscanf(argv[4], "%llu", &tmpll) != 1) { ti->error = "Invalid write device sector"; - goto bad; + goto bad_dev_read; } dc->start_write = tmpll; if (sscanf(argv[5], "%u", &dc->write_delay) != 1) { ti->error = "Invalid write delay"; - goto bad; + goto bad_dev_read; } if (dm_get_device(ti, argv[3], dc->start_write, ti->len, dm_table_get_mode(ti->table), &dc->dev_write)) { ti->error = "Write device lookup failed"; - dm_put_device(ti, dc->dev_read); - goto bad; + goto bad_dev_read; } out: dc->delayed_pool = mempool_create_slab_pool(128, delayed_cache); if (!dc->delayed_pool) { DMERR("Couldn't create delayed bio pool."); - goto bad; + goto bad_dev_write; } setup_timer(&dc->delay_timer, handle_delayed_timer, (unsigned long)dc); @@ -203,6 +201,11 @@ out: ti->private = dc; return 0; +bad_dev_write: + if (dc->dev_write) + dm_put_device(ti, dc->dev_write); +bad_dev_read: + dm_put_device(ti, dc->dev_read); bad: kfree(dc); return -EINVAL;