Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit af4218c3 authored by Tilman Schmidt's avatar Tilman Schmidt Committed by David S. Miller
Browse files

gigaset: remove unnecessary poll method 



The N_GIGASET_M101 line discipline implemented by the ser_gigaset
driver does not transfer any data from/to userspace through the
tty interface. Therefore a poll method is not needed.

Signed-off-by: default avatarTilman Schmidt <tilman@imap.cc>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c5419e6f

drivers/isdn/gigaset/ser-gigaset.c

+0 −15
Original line number Diff line number Diff line
@@ -16,7 +16,6 @@ 
#include <linux/moduleparam.h>

#include <linux/platform_device.h>

#include <linux/tty.h>

#include <linux/poll.h>

#include <linux/completion.h>



/* Version Information */
@@ -571,7 +570,6 @@ gigaset_tty_close(struct tty_struct *tty) 
	}



	/* prevent other callers from entering ldisc methods */

	/* FIXME: should use the tty state flags */

	tty->disc_data = NULL;



	if (!cs->hw.ser)
@@ -672,18 +670,6 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file, 
	return rc;

}



/*

 * Poll on the tty.

 * Unused, always return zero.

 *

 * FIXME: should probably return an exception - especially on hangup

 */

static unsigned int

gigaset_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)

{

	return 0;

}



/*

 * Called by the tty driver when a block of data has been received.

 * Will not be re-entered while running but other ldisc functions
@@ -773,7 +759,6 @@ static struct tty_ldisc_ops gigaset_ldisc = { 
	.read		= gigaset_tty_read,

	.write		= gigaset_tty_write,

	.ioctl		= gigaset_tty_ioctl,

	.poll		= gigaset_tty_poll,

	.receive_buf	= gigaset_tty_receive,

	.write_wakeup	= gigaset_tty_wakeup,

};