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authorSudip Mukherjee <sudipm.mukherjee@gmail.com>2015-10-03 20:52:39 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-04 08:52:32 +0100
commit2d9920eca404c785483598980547ff3be58eddd9 (patch)
tree639a050f44dfd127c28f43fc55343e096fbf879e /drivers/staging/dgnc
parent851f306d6e42a7573dd5a9425ce929ff10215be6 (diff)
staging: dgnc: remove unused variables
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>
Diffstat (limited to 'drivers/staging/dgnc')
-rw-r--r--drivers/staging/dgnc/dgnc_cls.c4
-rw-r--r--drivers/staging/dgnc/dgnc_tty.c11
2 files changed, 3 insertions, 12 deletions
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 76fe4b2935b5..24fc28c0c966 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -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;
}
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 8a6f9e222e12..cdc78f80c918 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -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);
}