From e47e7379ce3e03018619e994976b4059b790c955 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 5 Apr 2016 18:30:02 +0900 Subject: staging: dgnc: remove redundant NULL check in There were already checking NULL about channel_t / un_t before calling dgnc_maxcps_room(). Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgnc/dgnc_tty.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/staging/dgnc') diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 7f73a4104ec3..c07897afdd7c 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -1536,19 +1536,8 @@ static int dgnc_tty_chars_in_buffer(struct tty_struct *tty) */ static int dgnc_maxcps_room(struct tty_struct *tty, int bytes_available) { - struct channel_t *ch = NULL; - struct un_t *un = NULL; - - if (!tty) - return bytes_available; - - un = tty->driver_data; - if (!un || un->magic != DGNC_UNIT_MAGIC) - return bytes_available; - - ch = un->un_ch; - if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) - return bytes_available; + struct un_t *un = tty->driver_data; + struct channel_t *ch = un->un_ch; /* * If its not the Transparent print device, return -- cgit