IB/hfi1: Remove unreachable code

Remove unreachable code from RC ack handling to fix an
smatch error.

Fixes: 633d273 ("staging/rdma/hfi1: use mod_timer when appropriate")
Reported-by: Dan Carpenter <[email protected]>
Reviewed-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>

Author: mmarcini

drivers/staging/rdma/hfi1/rc.c

@@ -1497,7 +1497,7 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
 		/* Ignore reserved NAK codes. */
 		goto bail_stop;
 	}
-	return ret;
+	/* cannot be reached  */
 bail_stop:
 	hfi1_stop_rc_timers(qp);
 	return ret;