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staging: dgnc: remove unused variables

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These variables were only assigned some values but were never used.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2015-10-03 20:52:39 +05:30 committed by Greg Kroah-Hartman
parent 851f306d6e
commit 2d9920eca4
2 changed files with 3 additions and 12 deletions
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4
drivers/staging/dgnc/dgnc_cls.c
View File

@ -854,10 +854,8 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
* Discard character if we are ignoring the error mask.
*/
if (linestatus & error_mask) {
unsigned char discard;
linestatus = 0;
discard = readb(&ch->ch_cls_uart->txrx);
readb(&ch->ch_cls_uart->txrx);
continue;
}

11
drivers/staging/dgnc/dgnc_tty.c
View File

@ -1398,12 +1398,10 @@ static void dgnc_tty_hangup(struct tty_struct *tty)
*/
static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
{
struct ktermios *ts;
struct dgnc_board *bd;
struct channel_t *ch;
struct un_t *un;
unsigned long flags;
int rc = 0;
if (!tty || tty->magic != TTY_MAGIC)
return;
@ -1420,8 +1418,6 @@ static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
if (!bd || bd->magic != DGNC_BOARD_MAGIC)
return;
ts = &tty->termios;
spin_lock_irqsave(&ch->ch_lock, flags);
/*
@ -1484,7 +1480,7 @@ static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
/* wait for output to drain */
/* This will also return if we take an interrupt */
rc = bd->bd_ops->drain(tty, 0);
bd->bd_ops->drain(tty, 0);
dgnc_tty_flush_buffer(tty);
tty_ldisc_flush(tty);
@ -1737,7 +1733,6 @@ static int dgnc_tty_write(struct tty_struct *tty,
struct channel_t *ch = NULL;
struct un_t *un = NULL;
int bufcount = 0, n = 0;
int orig_count = 0;
unsigned long flags;
ushort head;
ushort tail;
@ -1763,7 +1758,6 @@ static int dgnc_tty_write(struct tty_struct *tty,
* This helps to figure out if we should ask the FEP
* to send us an event when it has more space available.
*/
orig_count = count;
spin_lock_irqsave(&ch->ch_lock, flags);
@ -2031,7 +2025,6 @@ static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout)
struct dgnc_board *bd;
struct channel_t *ch;
struct un_t *un;
int rc;
if (!tty || tty->magic != TTY_MAGIC)
return;
@ -2048,7 +2041,7 @@ static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout)
if (!bd || bd->magic != DGNC_BOARD_MAGIC)
return;
rc = bd->bd_ops->drain(tty, 0);
bd->bd_ops->drain(tty, 0);
}