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Commit eb31005e authored by Daniel Walker's avatar Daniel Walker Committed by Linus Torvalds
Browse files

drivers/char/tty_io.c: remove pty_sem 



I couldn't find any users, so removing it..

Signed-off-by: default avatarDaniel Walker <dwalker@mvista.com>
Acked-by: default avatarAlan Cox <alan@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d156042f

drivers/char/tty_io.c

+0 −1
Original line number Diff line number Diff line
@@ -3721,7 +3721,6 @@ static void initialize_tty_struct(struct tty_struct *tty) 
	tty->buf.head = tty->buf.tail = NULL;

	tty_buffer_init(tty);

	INIT_DELAYED_WORK(&tty->buf.work, flush_to_ldisc);

	init_MUTEX(&tty->buf.pty_sem);

	mutex_init(&tty->termios_mutex);

	init_waitqueue_head(&tty->write_wait);

	init_waitqueue_head(&tty->read_wait);

include/linux/tty.h

+0 −1
Original line number Diff line number Diff line
@@ -74,7 +74,6 @@ struct tty_buffer { 


struct tty_bufhead {

	struct delayed_work work;

	struct semaphore pty_sem;

	spinlock_t lock;

	struct tty_buffer *head;	/* Queue head */

	struct tty_buffer *tail;	/* Active buffer */