Commit 034a186d authored Oct 16, 2009 by Jonathan Brassow Committed by Alasdair G Kergon Oct 16, 2009

dm snapshot: free exception store on init failure



While initializing the snapshot module, if we fail to register
the snapshot target then we must back-out the exception store
module initialization.

Cc: stable@kernel.org
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent 6d45d93e

drivers/md/dm-snap.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1470,7 +1470,7 @@ static int __init dm_snapshot_init(void)
		r = dm_register_target(&snapshot_target);
		if (r) {
		DMERR("snapshot target register failed %d", r);
		return r;
		goto bad_register_snapshot_target;
		}

		r = dm_register_target(&origin_target);
		@@ -1527,6 +1527,9 @@ bad2:
		dm_unregister_target(&origin_target);
		bad1:
		dm_unregister_target(&snapshot_target);

		bad_register_snapshot_target:
		dm_exception_store_exit();
		return r;
		}