x25_asy: Fix ref count rule violation
x25_asy does not take an ldisc reference before calling the flush method. Fix it to use the helper function we provide. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Krzysztof Halasa <khc@pm.waw.pl> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -554,6 +554,7 @@ static void x25_asy_receive_buf(struct tty_struct *tty, const unsigned char *cp,
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static int x25_asy_open_tty(struct tty_struct *tty)
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{
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struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
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struct tty_ldisc *ld;
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int err;
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/* First make sure we're not already connected. */
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@ -572,9 +573,7 @@ static int x25_asy_open_tty(struct tty_struct *tty)
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if (tty->driver->flush_buffer) {
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tty->driver->flush_buffer(tty);
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}
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if (tty->ldisc.flush_buffer) {
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tty->ldisc.flush_buffer(tty);
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}
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tty_ldisc_flush(tty);
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/* Restore default settings */
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sl->dev->type = ARPHRD_X25;
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