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>

diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 76fe4b2935b56625e20b162d08f1845791af2676..24fc28c0c966eab53e72949233c32dda6ca18889 100644 (file)
--- 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 8a6f9e222e12171249204427d72325f8ed06229a..cdc78f80c9186b3357da99fdfb5437b823a3ae38 100644 (file)
--- 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);
 }