diff options
Diffstat (limited to 'drivers/char/isicom.c')
| -rw-r--r-- | drivers/char/isicom.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 57b115272aaa..9c6be8da220c 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -1140,28 +1140,29 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf, } /* put_char et all */ -static void isicom_put_char(struct tty_struct *tty, unsigned char ch) +static int isicom_put_char(struct tty_struct *tty, unsigned char ch) { struct isi_port *port = tty->driver_data; struct isi_board *card = port->card; unsigned long flags; if (isicom_paranoia_check(port, tty->name, "isicom_put_char")) - return; + return 0; if (!port->xmit_buf) - return; + return 0; spin_lock_irqsave(&card->card_lock, flags); - if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) - goto out; + if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) { + spin_unlock_irqrestore(&card->card_lock, flags); + return 0; + } port->xmit_buf[port->xmit_head++] = ch; port->xmit_head &= (SERIAL_XMIT_SIZE - 1); port->xmit_cnt++; spin_unlock_irqrestore(&card->card_lock, flags); -out: - return; + return 1; } /* flush_chars et all */ |