staging: i4l: remove parens around return statement

Remove parentheses surrounding return statements. Error found by
checkpatch.

changes made using coccinelle script:

@@
expression e,e1;
@@
(
return (e / e1);
|
return
-(
e
-)
;
)
Signed-off-by: Elizabeth Ferdman <gnudevliz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/i4l/act2000/capi.c

@@ -99,7 +99,7 @@ actcapi_chkhdr(act2000_card *card, actcapi_msghdr *hdr)
 	for (i = 0; i < num_valid_imsg; i++)
 		if ((hdr->cmd.cmd == valid_msg[i].cmd.cmd) &&
 		    (hdr->cmd.subcmd == valid_msg[i].cmd.subcmd)) {
-			return (i ? 1 : 2);
+			return i ? 1 : 2;
 		}
 	return 0;
 }

drivers/staging/i4l/act2000/module.c

@@ -94,7 +94,7 @@ act2000_find_msn(act2000_card *card, char *msn, int ia5)
 		p = p->next;
 	}
 	if (!ia5)
-		return (1 << (eaz - '0'));
+		return 1 << (eaz - '0');
 	else
 		return eaz;
 }
@@ -110,10 +110,10 @@ act2000_find_eaz(act2000_card *card, char eaz)
 
 	while (p) {
 		if (p->eaz == eaz)
-			return (p->msn);
+			return p->msn;
 		p = p->next;
 	}
-	return ("\0");
+	return "\0";
 }
 
 /*
@@ -292,7 +292,7 @@ act2000_command(act2000_card *card, isdn_ctrl *c)
 			if (ret)
 				return ret;
 			if (card->flags & ACT2000_FLAGS_RUNNING)
-				return (actcapi_manufacturer_req_msn(card));
+				return actcapi_manufacturer_req_msn(card);
 			return 0;
 		case ACT2000_IOCTL_ADDCARD:
 			if (copy_from_user(&cdef, arg,
@@ -512,7 +512,7 @@ if_command(isdn_ctrl *c)
 	act2000_card *card = act2000_findcard(c->driver);
 
 	if (card)
-		return (act2000_command(card, c));
+		return act2000_command(card, c);
 	printk(KERN_ERR
 	       "act2000: if_command %d called with invalid driverId %d!\n",
 	       c->command, c->driver);
@@ -527,7 +527,7 @@ if_writecmd(const u_char __user *buf, int len, int id, int channel)
 	if (card) {
 		if (!(card->flags & ACT2000_FLAGS_RUNNING))
 			return -ENODEV;
-		return (len);
+		return len;
 	}
 	printk(KERN_ERR
 	       "act2000: if_writecmd called with invalid driverId!\n");
@@ -542,7 +542,7 @@ if_readstatus(u_char __user *buf, int len, int id, int channel)
 	if (card) {
 		if (!(card->flags & ACT2000_FLAGS_RUNNING))
 			return -ENODEV;
-		return (act2000_readstatus(buf, len, card));
+		return act2000_readstatus(buf, len, card);
 	}
 	printk(KERN_ERR
 	       "act2000: if_readstatus called with invalid driverId!\n");
@@ -557,7 +557,7 @@ if_sendbuf(int id, int channel, int ack, struct sk_buff *skb)
 	if (card) {
 		if (!(card->flags & ACT2000_FLAGS_RUNNING))
 			return -ENODEV;
-		return (act2000_sendbuf(card, channel, ack, skb));
+		return act2000_sendbuf(card, channel, ack, skb);
 	}
 	printk(KERN_ERR
 	       "act2000: if_sendbuf called with invalid driverId!\n");
@@ -777,7 +777,7 @@ act2000_addcard(int bus, int port, int irq, char *id)
 			failed++;
 		}
 	}
-	return (added - failed);
+	return added - failed;
 }
 
 #define DRIVERNAME "IBM Active 2000 ISDN driver"