IB/srp: Fix list corruption/oops on module reload

Add a missing call to srp_remove_host() in srp_remove_one() so that we 
don't leak SRP transport class list entries.
Tested-by: David Dillow <dillowda@ornl.gov>
Acked-by: FUJITA Tomonori <tomof@acm.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/ulp/srp/ib_srp.c

@@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
 		list_for_each_entry_safe(target, tmp_target,
 					 &host->target_list, list) {
 			scsi_remove_host(target->scsi_host);
+			srp_remove_host(target->scsi_host);
 			srp_disconnect_target(target);
 			ib_destroy_cm_id(target->cm_id);
 			srp_free_target_ib(target);