target: make queue_tm_rsp() return void

The return value wasn't checked by any of the callers.  Assuming this is
correct behaviour, we can simplify some code by not bothering to
generate it.

nab: Add srpt_queue_data_in() + srpt_queue_tm_rsp() nops around
     srpt_queue_response() void return

Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 7c90814..568ad25 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -786,7 +786,7 @@
 	return 0;
 }
 
-static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
+static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
 {
 	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
 	struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr;
@@ -796,7 +796,6 @@
 	 */
 	atomic_set(&tl_tmr->tmr_complete, 1);
 	wake_up(&tl_tmr->tl_tmr_wait);
-	return 0;
 }
 
 static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)