staging: dgnc: delete parentheses around right hand side of assignment

---
 drivers/staging/dgnc/dgnc_cls.c  | 2 +-
 drivers/staging/dgnc/dgnc_mgmt.c | 2 +-
 drivers/staging/dgnc/dgnc_neo.c  | 2 +-
 drivers/staging/dgnc/dgnc_tty.c  | 6 +++---
 4 files changed, 6 insertions(+), 6 deletions(-)
 
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 72f0aaa..0ff3139 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -823,7 +823,7 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
 	tail = ch->ch_r_tail;
 
 	/* Store how much space we have left in the queue */
-	qleft = (tail - head - 1);
+	qleft = tail - head - 1;
 	if (qleft < 0)
 		qleft += RQUEUEMASK + 1;
 
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index 518fbd5..ba29a8d 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -192,7 +192,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 		spin_lock_irqsave(&ch->ch_lock, flags);
 
-		mstat = (ch->ch_mostat | ch->ch_mistat);
+		mstat = ch->ch_mostat | ch->ch_mistat;
 
 		if (mstat & UART_MCR_DTR) {
 			ni.mstat |= TIOCM_DTR;
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index ee3155b..31ac437 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1735,7 +1735,7 @@ static unsigned int neo_read_eeprom(unsigned char __iomem *base, unsigned int ad
 	/* enable chip select */
 	writeb(NEO_EECS, base + NEO_EEREG);
 	/* READ */
-	enable = (address | 0x180);
+	enable = address | 0x180;
 
 	for (bits = 9; bits--; ) {
 		databit = (enable & (1 << bits)) ? NEO_EEDI : 0;
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index b79eab0..f4dfc13 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -796,7 +796,7 @@ static void dgnc_set_custom_speed(struct channel_t *ch, uint newrate)
 	 *  And of course, rates above the dividend won't fly.
 	 */
 	if (newrate && newrate < ((ch->ch_bd->bd_dividend / 0xFFFF) + 1))
-		newrate = ((ch->ch_bd->bd_dividend / 0xFFFF) + 1);
+		newrate = (ch->ch_bd->bd_dividend / 0xFFFF) + 1;
 
 	if (newrate && newrate > ch->ch_bd->bd_dividend)
 		newrate = ch->ch_bd->bd_dividend;
@@ -1848,7 +1848,7 @@ static int dgnc_tty_tiocmget(struct tty_struct *tty)
 
 	spin_lock_irqsave(&ch->ch_lock, flags);
 
-	mstat = (ch->ch_mostat | ch->ch_mistat);
+	mstat = ch->ch_mostat | ch->ch_mistat;
 
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 
@@ -2048,7 +2048,7 @@ static inline int dgnc_get_mstat(struct channel_t *ch)
 
 	spin_lock_irqsave(&ch->ch_lock, flags);
 
-	mstat = (ch->ch_mostat | ch->ch_mistat);
+	mstat = ch->ch_mostat | ch->ch_mistat;
 
 	spin_unlock_irqrestore(&ch->ch_lock, flags);