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drivers/char/tty_io.c: remove pty_sem 

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

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Acked-by: Alan Cox <alan@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Daniel Walker 2008-02-06 01:37:31 -08:00 committed by Linus Torvalds
parent d156042f9f
commit eb31005eaf
2 changed files with 0 additions and 2 deletions
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1
drivers/char/tty_io.c
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@ -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);

1
include/linux/tty.h
View File

@ -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 */