Remove duplicate kfree in dm_register_target error path.

Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
--- diff/drivers/md/dm-target.c	2004-06-30 14:25:46.000000000 +0100
+++ source/drivers/md/dm-target.c	2004-10-19 16:53:56.000000000 +0100
@@ -121,7 +121,6 @@
 
 	down_write(&_lock);
 	if (__find_target_type(t->name)) {
-		kfree(ti);
 		rv = -EEXIST;
 	} else
 		list_add(&ti->list, &_targets);