diff options
Diffstat (limited to 'drivers/net/slip.c')
| -rw-r--r-- | drivers/net/slip.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/slip.c b/drivers/net/slip.c index 8ec1a9a0bb9..584809c656d 100644 --- a/drivers/net/slip.c +++ b/drivers/net/slip.c @@ -670,16 +670,17 @@ static void sl_setup(struct net_device *dev) * in parallel */ -static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) +static unsigned int slip_receive_buf(struct tty_struct *tty, + const unsigned char *cp, char *fp, int count) { struct slip *sl = tty->disc_data; + int bytes = count; if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) - return; + return -ENODEV; /* Read the characters out of the buffer */ - while (count--) { + while (bytes--) { if (fp && *fp++) { if (!test_and_set_bit(SLF_ERROR, &sl->flags)) sl->dev->stats.rx_errors++; @@ -693,6 +694,8 @@ static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp, #endif slip_unesc(sl, *cp++); } + + return count; } /************************************ |