diff options
Diffstat (limited to 'drivers/staging/dgap')
| -rw-r--r-- | drivers/staging/dgap/dgap.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c index cc21dd2..9affc5b 100644 --- a/drivers/staging/dgap/dgap.c +++ b/drivers/staging/dgap/dgap.c @@ -2507,22 +2507,9 @@ static int dgap_wait_for_drain(struct tty_struct *tty) * returns the new bytes_available. This only affects printer * output. */ -static int dgap_maxcps_room(struct tty_struct *tty, int bytes_available) +static int dgap_maxcps_room(struct channel_t *ch, struct un_t *un, + int bytes_available) { - struct channel_t *ch; - struct un_t *un; - - if (!tty) - return bytes_available; - - un = tty->driver_data; - if (!un || un->magic != DGAP_UNIT_MAGIC) - return bytes_available; - - ch = un->un_ch; - if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) - return bytes_available; - /* * If its not the Transparent print device, return * the full data amount. @@ -2624,7 +2611,7 @@ static int dgap_tty_write_room(struct tty_struct *tty) ret += ch->ch_tsize; /* Limit printer to maxcps */ - ret = dgap_maxcps_room(tty, ret); + ret = dgap_maxcps_room(ch, un, ret); /* * If we are printer device, leave space for @@ -2729,7 +2716,7 @@ static int dgap_tty_write(struct tty_struct *tty, const unsigned char *buf, * Limit printer output to maxcps overall, with bursts allowed * up to bufsize characters. */ - bufcount = dgap_maxcps_room(tty, bufcount); + bufcount = dgap_maxcps_room(ch, un, bufcount); /* * Take minimum of what the user wants to send, and the |