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Commit 2c7fea99 authored by Jiri Slaby's avatar Jiri Slaby Committed by Linus Torvalds
Browse files

Char: cyclades, remove sleep_on 



convert to wait_* and completion

Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 875b206b

drivers/char/cyclades.c

+16 −29
Original line number Diff line number Diff line
@@ -947,7 +947,7 @@ do_softint(struct work_struct *work) 
	tty_wakeup(tty);

#ifdef Z_WAKE

	if (test_and_clear_bit(Cy_EVENT_SHUTDOWN_WAKEUP, &info->event))

		wake_up_interruptible(&info->shutdown_wait);

		complete(&info->shutdown_wait);

#endif

} /* do_softint */
@@ -2324,9 +2324,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp, 
	 * until it's done, and then try again.

	 */

	if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {

		if (info->flags & ASYNC_CLOSING) {

			interruptible_sleep_on(&info->close_wait);

		}

		wait_event_interruptible(info->close_wait,

				!(info->flags & ASYNC_CLOSING));

		return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;

	}
@@ -2597,8 +2596,8 @@ static int cy_open(struct tty_struct *tty, struct file *filp) 
	 * If the port is the middle of closing, bail out now

	 */

	if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {

		if (info->flags & ASYNC_CLOSING)

			interruptible_sleep_on(&info->close_wait);

		wait_event_interruptible(info->close_wait,

				!(info->flags & ASYNC_CLOSING));

		return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;

	}
@@ -2805,7 +2804,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp) 
					"ttyC%d was %x\n", info->line, retval);

			}

			CY_UNLOCK(info, flags);

			interruptible_sleep_on(&info->shutdown_wait);

			wait_for_completion_interruptible(&info->shutdown_wait);

			CY_LOCK(info, flags);

		}

#endif
@@ -4091,32 +4090,20 @@ cy_ioctl(struct tty_struct *tty, struct file *file, 
	case TIOCMIWAIT:

		CY_LOCK(info, flags);

		/* note the counters on entry */

		cprev = info->icount;

		cnow = info->icount;

		CY_UNLOCK(info, flags);

		while (1) {

			interruptible_sleep_on(&info->delta_msr_wait);

			/* see if a signal did it */

			if (signal_pending(current)) {

				return -ERESTARTSYS;

			}



		ret_val = wait_event_interruptible(info->delta_msr_wait, ({

			cprev = cnow;

			CY_LOCK(info, flags);

			cnow = info->icount;	/* atomic copy */

			CY_UNLOCK(info, flags);



			if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&

			    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {

				return -EIO;	/* no change => error */

			}

			if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||

			((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||

			((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||

			((arg & TIOCM_CD)  && (cnow.dcd != cprev.dcd)) ||

			    ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {

				return 0;

			}

			cprev = cnow;

		}

		/* NOTREACHED */

			((arg & TIOCM_CTS) && (cnow.cts != cprev.cts));

		}));

		break;



		/*

		 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
@@ -4534,7 +4521,7 @@ static void __devinit cy_init_card(struct cyclades_card *cinfo) 
		INIT_WORK(&info->tqueue, do_softint);

		init_waitqueue_head(&info->open_wait);

		init_waitqueue_head(&info->close_wait);

		init_waitqueue_head(&info->shutdown_wait);

		init_completion(&info->shutdown_wait);

		init_waitqueue_head(&info->delta_msr_wait);



		if (IS_CYC_Z(*cinfo)) {

include/linux/cyclades.h

+1 −1
Original line number Diff line number Diff line
@@ -588,7 +588,7 @@ struct cyclades_port { 
	struct work_struct	tqueue;

	wait_queue_head_t       open_wait;

	wait_queue_head_t       close_wait;

	wait_queue_head_t       shutdown_wait;

	struct completion       shutdown_wait;

	wait_queue_head_t       delta_msr_wait;

	int throttle;

};