pcmcia/ipwireless: don't use flush_scheduled_work()

flush_scheduled_work() is deprecated and scheduled to be removed.
Directly flush the used works instead.

Signed-off-by: Tejun Heo <[e-mail]>
Acked-by: Jiri Kosina <[e-mail]>
Acked-by: David Sterba <[e-mail]>

drivers/char/pcmcia/ipwireless/hardware.c

···
 
 	ipwireless_stop_interrupts(hw);
 
-	flush_scheduled_work();
+	flush_work_sync(&hw->work_rx);
 
 	for (i = 0; i < NL_NUM_OF_ADDRESSES; i++)
 		if (hw->packet_assembler[i] != NULL)

drivers/char/pcmcia/ipwireless/network.c

···
 	network->shutting_down = 1;
 
 	ipwireless_ppp_close(network);
-	flush_scheduled_work();
+	flush_work_sync(&network->work_go_online);
+	flush_work_sync(&network->work_go_offline);
 
 	ipwireless_stop_interrupts(network->hardware);
 	ipwireless_associate_network(network->hardware, NULL);

drivers/char/pcmcia/ipwireless/tty.c

···
 				mutex_unlock(&ttyj->ipw_tty_mutex);
 				tty_hangup(ttyj->linux_tty);
 				/* Wait till the tty_hangup has completed */
-				flush_scheduled_work();
+				flush_work_sync(&ttyj->linux_tty->hangup_work);
 				/* FIXME: Exactly how is the tty object locked here
 				   against a parallel ioctl etc */
 				mutex_lock(&ttyj->ipw_tty_mutex);