diff options
| -rw-r--r-- | drivers/char/mxser.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 28f63566ab8a..97b1291ec224 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -1091,16 +1091,16 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou return total; } -static void mxser_put_char(struct tty_struct *tty, unsigned char ch) +static int mxser_put_char(struct tty_struct *tty, unsigned char ch) { struct mxser_port *info = tty->driver_data; unsigned long flags; if (!info->xmit_buf) - return; + return 0; if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) - return; + return 0; spin_lock_irqsave(&info->slock, flags); info->xmit_buf[info->xmit_head++] = ch; @@ -1118,6 +1118,7 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch) spin_unlock_irqrestore(&info->slock, flags); } } + return 1; } |