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| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2007-10-19 22:38:39 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2007-10-20 02:01:01 +0100 |
| commit | a72cf737e09da409e047863e38410930dae5fe05 (patch) | |
| tree | 66a7b5e897e6625e1690ea42b7944e17f8d3161b /drivers | |
| parent | 815f9e32709b014a459919176a4f0feebd42731e (diff) | |
| download | linux-a72cf737e09da409e047863e38410930dae5fe05.tar.gz linux-a72cf737e09da409e047863e38410930dae5fe05.tar.bz2 linux-a72cf737e09da409e047863e38410930dae5fe05.zip | |
dm raid1: fix leakage
Add missing 'dm_io_client_destroy' to alloc_context error path.
Reorganize mirror constructor error path in order to prevent
workqueue leakage.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-raid1.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index d09ff15490a5..6f60f307fae2 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -974,6 +974,7 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors, if (rh_init(&ms->rh, ms, dl, region_size, ms->nr_regions)) { ti->error = "Error creating dirty region hash"; + dm_io_client_destroy(ms->io_client); kfree(ms); return NULL; } @@ -1163,16 +1164,14 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv) ms->kmirrord_wq = create_singlethread_workqueue("kmirrord"); if (!ms->kmirrord_wq) { DMERR("couldn't start kmirrord"); - free_context(ms, ti, m); - return -ENOMEM; + r = -ENOMEM; + goto err_free_context; } INIT_WORK(&ms->kmirrord_work, do_mirror); r = parse_features(ms, argc, argv, &args_used); - if (r) { - free_context(ms, ti, ms->nr_mirrors); - return r; - } + if (r) + goto err_destroy_wq; argv += args_used; argc -= args_used; @@ -1188,19 +1187,22 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv) if (argc) { ti->error = "Too many mirror arguments"; - free_context(ms, ti, ms->nr_mirrors); - return -EINVAL; + r = -EINVAL; + goto err_destroy_wq; } r = kcopyd_client_create(DM_IO_PAGES, &ms->kcopyd_client); - if (r) { - destroy_workqueue(ms->kmirrord_wq); - free_context(ms, ti, ms->nr_mirrors); - return r; - } + if (r) + goto err_destroy_wq; wake(ms); return 0; + +err_destroy_wq: + destroy_workqueue(ms->kmirrord_wq); +err_free_context: + free_context(ms, ti, ms->nr_mirrors); + return r; } static void mirror_dtr(struct dm_target *ti) |