Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a72cf737e09da409e047863e38410930dae5fe05 Commit: a72cf737e09da409e047863e38410930dae5fe05 Parent: 815f9e32709b014a459919176a4f0feebd42731e Author: Dmitry Monakhov <[EMAIL PROTECTED]> AuthorDate: Fri Oct 19 22:38:39 2007 +0100 Committer: Alasdair G Kergon <[EMAIL PROTECTED]> CommitDate: Sat Oct 20 02:01:01 2007 +0100
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 <[EMAIL PROTECTED]> Signed-off-by: Alasdair G Kergon <[EMAIL PROTECTED]> --- 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 d09ff15..6f60f30 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) - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html