diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2014-02-19 20:32:33 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-02-24 11:41:18 -0500 |
| commit | 1acacc0784aab45627b6009e0e9224886279ac0b (patch) | |
| tree | dd1b3ce2e1bd51c2b81a7d3d4b0d066fa09bac10 | |
| parent | f3a44fe0608eb628e1f8f6e3540462e6d171a745 (diff) | |
dm thin: fix the error path for the thin device constructor
dm_pool_close_thin_device() must be called if dm_set_target_max_io_len()
fails in thin_ctr(). Otherwise __pool_destroy() will fail because the
pool will still have an open thin device:
device-mapper: thin metadata: attempt to close pmd when 1 device(s) are still open
device-mapper: thin: __pool_destroy: dm_pool_metadata_close() failed.
Also, must establish error code if failing thin_ctr() because the pool
is in fail_io mode.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/md/dm-thin.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index d501e436a7d9..4cf4b198cb60 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2895,6 +2895,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) if (get_pool_mode(tc->pool) == PM_FAIL) { ti->error = "Couldn't open thin device, Pool is in fail mode"; + r = -EINVAL; goto bad_thin_open; } @@ -2906,7 +2907,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) r = dm_set_target_max_io_len(ti, tc->pool->sectors_per_block); if (r) - goto bad_thin_open; + goto bad_target_max_io_len; ti->num_flush_bios = 1; ti->flush_supported = true; @@ -2927,6 +2928,8 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) return 0; +bad_target_max_io_len: + dm_pool_close_thin_device(tc->td); bad_thin_open: __pool_dec(tc->pool); bad_pool_lookup: |