ipwireless: missing assignment

We never report the error because we don't assign it to ret.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/tty/ipwireless/hardware.c

@@ -1455,7 +1455,7 @@ static void __handle_setup_get_version_rsp(struct ipw_hardware *hw)
 			return;
 		}
 
-		set_RTS(hw, PRIO_SETUP, channel_idx,
+		ret = set_RTS(hw, PRIO_SETUP, channel_idx,
 			(hw->control_lines [channel_idx] &
 			 IPW_CONTROL_LINE_RTS) != 0);
 		if (ret) {