diff options
| author | Anton Altaparmakov <aia21@cantab.net> | 2005-06-25 14:27:27 +0100 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-06-25 14:27:27 +0100 |
| commit | 38b22b6e9f46ab8f73ef5734f0e0a000766a9258 (patch) | |
| tree | 2ccc41ef55918d3af43e444bde7648562a031559 /drivers/char/amiserial.c | |
| parent | 3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4 (diff) | |
| parent | b3e112bcc19abd8e9657dca34a87316786e096f3 (diff) | |
Automerge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'drivers/char/amiserial.c')
| -rw-r--r-- | drivers/char/amiserial.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 1dc4259213a6..777bc499bbbd 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); |