diff options
| author | Jeff Garzik <jgarzik@pretzel.yyz.us> | 2005-06-26 18:06:06 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-26 18:06:06 -0400 |
| commit | aef7b83c92dd0b7e994805440655d1d64147287b (patch) | |
| tree | 981f373358c1988e061625e8f272013065cb086f /drivers/char/amiserial.c | |
| parent | b1fc5505e0dbcc3fd7c75bfe6bee39ec50080963 (diff) | |
| parent | 8678887e7fb43cd6c9be6c9807b05e77848e0920 (diff) | |
| download | blackbird-op-linux-aef7b83c92dd0b7e994805440655d1d64147287b.tar.gz blackbird-op-linux-aef7b83c92dd0b7e994805440655d1d64147287b.zip | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'drivers/char/amiserial.c')
| -rw-r--r-- | drivers/char/amiserial.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 1dc4259213a6..2a36561eec68 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -861,13 +861,18 @@ static void change_speed(struct async_struct *info, static void rs_put_char(struct tty_struct *tty, unsigned char ch) { - struct async_struct *info = (struct async_struct *)tty->driver_data; + struct async_struct *info; unsigned long flags; + if (!tty) + return; + + info = tty->driver_data; + if (serial_paranoia_check(info, tty->name, "rs_put_char")) return; - if (!tty || !info->xmit.buf) + if (!info->xmit.buf) return; local_irq_save(flags); @@ -910,13 +915,18 @@ static void rs_flush_chars(struct tty_struct *tty) static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count) { int c, ret = 0; - struct async_struct *info = (struct async_struct *)tty->driver_data; + struct async_struct *info; unsigned long flags; + if (!tty) + return 0; + + info = tty->driver_data; + if (serial_paranoia_check(info, tty->name, "rs_write")) return 0; - if (!tty || !info->xmit.buf || !tmp_buf) + if (!info->xmit.buf || !tmp_buf) return 0; local_save_flags(flags); @@ -1963,10 +1973,6 @@ static _INLINE_ void show_serial_version(void) } -int register_serial(struct serial_struct *req); -void unregister_serial(int line); - - static struct tty_operations serial_ops = { .open = rs_open, .close = rs_close, |
