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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>
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@ -74,7 +74,6 @@ struct tty_buffer {
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struct tty_bufhead {
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struct delayed_work work;
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struct semaphore pty_sem;
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spinlock_t lock;
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struct tty_buffer *head; /* Queue head */
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struct tty_buffer *tail; /* Active buffer */
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