forked from Minki/linux
00409bb045
The ISDN tty layer doesn't produce a 'NO CARRIER' message after hangup. I suppose it broke when tty_buffer_flush() has been added to tty_ldisc_flush() in the commit below. For isdn_tty_modem_result(RESULT_NO_CARRIER..) the message inserted via isdn_tty_at_cout() -> tty_insert_flip_char() is flushed immediately by tty_ldisc_flush() -> tty_buffer_flush(). More annoyingly, the audio abort sequence DLE-ETX is also lost. This patch fixes only active audio connections, because I assume that nobody changes the line discipline for audio. For non-audio connections the problem remains. Maybe we can remove the tty_ldisc_flush() in isdn_tty_modem_result() at all because it's done at tty_close? On Mon, May 07, 2007 at 04:05:57PM -0500, Paul Fulghum wrote: > Flush the tty flip buffer when the line discipline > input queue is flushed, including the user call > tcflush(TCIFLUSH/TCIOFLUSH). This prevents unexpected > stale data after a user application calls tcflush(). > > Cc: Alan Cox <alan@lxorguk.org.uk> > Cc: Antonino Ingargiola <tritemio@gmail.com> > Signed-off-by: Paul Fulghum <paulkf@microgate.com> > > --- a/drivers/char/tty_io.c 2007-05-04 05:46:55.000000000 -0500 > +++ b/drivers/char/tty_io.c 2007-05-05 03:23:46.000000000 -0500 > @@ -1240,6 +1263,7 @@ void tty_ldisc_flush(struct tty_struct * > ld->flush_buffer(tty); > tty_ldisc_deref(ld); > } > + tty_buffer_flush(tty); [..] Signed-off-by: Matthias Goebl <matthias.goebl@goebl.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| isdn_audio.c | ||
| isdn_audio.h | ||
| isdn_bsdcomp.c | ||
| isdn_common.c | ||
| isdn_common.h | ||
| isdn_concap.c | ||
| isdn_concap.h | ||
| isdn_net.c | ||
| isdn_net.h | ||
| isdn_ppp.c | ||
| isdn_ppp.h | ||
| isdn_tty.c | ||
| isdn_tty.h | ||
| isdn_ttyfax.c | ||
| isdn_ttyfax.h | ||
| isdn_v110.c | ||
| isdn_v110.h | ||
| isdn_x25iface.c | ||
| isdn_x25iface.h | ||
| Kconfig | ||
| Makefile | ||