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-rw-r--r--drivers/md/dm-snap.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index bbf861e..50e084d 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -564,6 +564,17 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return r;
}
+static void __free_exceptions(struct dm_snapshot *s)
+{
+ kcopyd_client_destroy(s->kcopyd_client);
+ s->kcopyd_client = NULL;
+
+ exit_exception_table(&s->pending, pending_cache);
+ exit_exception_table(&s->complete, exception_cache);
+
+ s->store.destroy(&s->store);
+}
+
static void snapshot_dtr(struct dm_target *ti)
{
struct dm_snapshot *s = (struct dm_snapshot *) ti->private;
@@ -574,13 +585,7 @@ static void snapshot_dtr(struct dm_target *ti)
/* After this returns there can be no new kcopyd jobs. */
unregister_snapshot(s);
- kcopyd_client_destroy(s->kcopyd_client);
-
- exit_exception_table(&s->pending, pending_cache);
- exit_exception_table(&s->complete, exception_cache);
-
- /* Deallocate memory used */
- s->store.destroy(&s->store);
+ __free_exceptions(s);
dm_put_device(ti, s->origin);
dm_put_device(ti, s->cow);
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