From ea1afd256258f04a290aaa7fd5c2d4deb2e79e26 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 13 Oct 2008 10:44:43 +0100 Subject: [PATCH] tty: fix up gigaset a bit Stephen's fixes reminded me that gigaset is still rather broken so fix it up a bit Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/ser-gigaset.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c index cc4f4e44ffe4..07052ed2a0c5 100644 --- a/drivers/isdn/gigaset/ser-gigaset.c +++ b/drivers/isdn/gigaset/ser-gigaset.c @@ -571,6 +571,7 @@ gigaset_tty_close(struct tty_struct *tty) } /* prevent other callers from entering ldisc methods */ + /* FIXME: should use the tty state flags */ tty->disc_data = NULL; if (!cs->hw.ser) @@ -642,10 +643,11 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file, return -ENXIO; switch (cmd) { - case TCGETS: - case TCGETA: - /* pass through to underlying serial device */ - rc = n_tty_ioctl_helper(tty, file, cmd, arg); + + case FIONREAD: + /* unused, always return zero */ + val = 0; + rc = put_user(val, p); break; case TCFLSH: @@ -659,20 +661,13 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file, flush_send_queue(cs); break; } - /* flush the serial port's buffer */ - rc = n_tty_ioctl_helper(tty, file, cmd, arg); - break; - - case FIONREAD: - /* unused, always return zero */ - val = 0; - rc = put_user(val, p); - break; + /* Pass through */ default: - rc = -ENOIOCTLCMD; + /* pass through to underlying serial device */ + rc = n_tty_ioctl_helper(tty, file, cmd, arg); + break; } - cs_put(cs); return rc; } @@ -680,6 +675,8 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file, /* * Poll on the tty. * Unused, always return zero. + * + * FIXME: should probably return an exception - especially on hangup */ static unsigned int gigaset_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait) -- 2.20.1