Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 751 insertions, 751 deletions

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 6ddb795e31c..d9f5524593f 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -111,7 +111,7 @@ isdn_unlock_drivers(void)
 
 #if defined(ISDN_DEBUG_NET_DUMP) || defined(ISDN_DEBUG_MODEM_DUMP)
 void
-isdn_dumppkt(char *s, u_char * p, int len, int dumplen)
+isdn_dumppkt(char *s, u_char *p, int len, int dumplen)
 {
 	int dumpc;
 
@@ -163,58 +163,58 @@ isdn_wildmat(char *s, char *p)
 	register int nostar = 1;
 
 	if (!(*s) && !(*p))
-		return(1);
+		return (1);
 	for (; *p; s++, p++)
 		switch (*p) {
-			case '\\':
-				/*
-				 * Literal match with following character,
-				 * fall through.
-				 */
+		case '\\':
+			/*
+			 * Literal match with following character,
+			 * fall through.
+			 */
+			p++;
+		default:
+			if (*s != *p)
+				return (*s == '\0') ? 2 : 1;
+					continue;
+		case '?':
+			/* Match anything. */
+			if (*s == '\0')
+				return (2);
+			continue;
+		case '*':
+			nostar = 0;
+			/* Trailing star matches everything. */
+			return (*++p ? isdn_star(s, p) : 0);
+		case '[':
+			/* [^....] means inverse character class. */
+			if ((reverse = (p[1] == '^')))
 				p++;
-			default:
-				if (*s != *p)
-					return (*s == '\0')?2:1;
-				continue;
-			case '?':
-				/* Match anything. */
-				if (*s == '\0')
-					return (2);
-				continue;
-			case '*':
-				nostar = 0;	
-				/* Trailing star matches everything. */
-				return (*++p ? isdn_star(s, p) : 0);
-			case '[':
-				/* [^....] means inverse character class. */
-				if ((reverse = (p[1] == '^')))
-					p++;
-				for (last = 0, matched = 0; *++p && (*p != ']'); last = *p)
-					/* This next line requires a good C compiler. */
-					if (*p == '-' ? *s <= *++p && *s >= last : *s == *p)
-						matched = 1;
-				if (matched == reverse)
-					return (1);
-				continue;
+			for (last = 0, matched = 0; *++p && (*p != ']'); last = *p)
+				/* This next line requires a good C compiler. */
+				if (*p == '-' ? *s <= *++p && *s >= last : *s == *p)
+					matched = 1;
+			if (matched == reverse)
+				return (1);
+			continue;
 		}
-	return (*s == '\0')?0:nostar;
+	return (*s == '\0') ? 0 : nostar;
 }
 
-int isdn_msncmp( const char * msn1, const char * msn2 )
+int isdn_msncmp(const char *msn1, const char *msn2)
 {
-	char TmpMsn1[ ISDN_MSNLEN ];
-	char TmpMsn2[ ISDN_MSNLEN ];
+	char TmpMsn1[ISDN_MSNLEN];
+	char TmpMsn2[ISDN_MSNLEN];
 	char *p;
 
-	for ( p = TmpMsn1; *msn1 && *msn1 != ':'; )  // Strip off a SPID
+	for (p = TmpMsn1; *msn1 && *msn1 != ':';)  // Strip off a SPID
 		*p++ = *msn1++;
 	*p = '\0';
 
-	for ( p = TmpMsn2; *msn2 && *msn2 != ':'; )  // Strip off a SPID
+	for (p = TmpMsn2; *msn2 && *msn2 != ':';)  // Strip off a SPID
 		*p++ = *msn2++;
 	*p = '\0';
 
-	return isdn_wildmat( TmpMsn1, TmpMsn2 );
+	return isdn_wildmat(TmpMsn1, TmpMsn2);
 }
 
 int
@@ -262,8 +262,8 @@ isdn_timer_funct(ulong dummy)
 				isdn_tty_carrier_timeout();
 		}
 	}
-	if (tf) 
-		mod_timer(&dev->timer, jiffies+ISDN_TIMER_RES);
+	if (tf)
+		mod_timer(&dev->timer, jiffies + ISDN_TIMER_RES);
 }
 
 void
@@ -284,7 +284,7 @@ isdn_timer_ctrl(int tf, int onoff)
 	else
 		dev->tflags &= ~tf;
 	if (dev->tflags && !old_tflags)
-		mod_timer(&dev->timer, jiffies+ISDN_TIMER_RES);
+		mod_timer(&dev->timer, jiffies + ISDN_TIMER_RES);
 	spin_unlock_irqrestore(&dev->timerlock, flags);
 }
 
@@ -302,7 +302,7 @@ isdn_receive_skb_callback(int di, int channel, struct sk_buff *skb)
 	}
 	/* Update statistics */
 	dev->ibytes[i] += skb->len;
-	
+
 	/* First, try to deliver data to network-device */
 	if (isdn_net_rcv_skb(i, skb))
 		return;
@@ -339,40 +339,40 @@ isdn_command(isdn_ctrl *cmd)
 {
 	if (cmd->driver == -1) {
 		printk(KERN_WARNING "isdn_command command(%x) driver -1\n", cmd->command);
-		return(1);
+		return (1);
 	}
 	if (!dev->drv[cmd->driver]) {
 		printk(KERN_WARNING "isdn_command command(%x) dev->drv[%d] NULL\n",
-			cmd->command, cmd->driver);
-		return(1);
+		       cmd->command, cmd->driver);
+		return (1);
 	}
 	if (!dev->drv[cmd->driver]->interface) {
 		printk(KERN_WARNING "isdn_command command(%x) dev->drv[%d]->interface NULL\n",
-			cmd->command, cmd->driver);
-		return(1);
+		       cmd->command, cmd->driver);
+		return (1);
 	}
 	if (cmd->command == ISDN_CMD_SETL2) {
 		int idx = isdn_dc2minor(cmd->driver, cmd->arg & 255);
 		unsigned long l2prot = (cmd->arg >> 8) & 255;
 		unsigned long features = (dev->drv[cmd->driver]->interface->features
-						>> ISDN_FEATURE_L2_SHIFT) &
-						ISDN_FEATURE_L2_MASK;
+					  >> ISDN_FEATURE_L2_SHIFT) &
+			ISDN_FEATURE_L2_MASK;
 		unsigned long l2_feature = (1 << l2prot);
 
 		switch (l2prot) {
-			case ISDN_PROTO_L2_V11096:
-			case ISDN_PROTO_L2_V11019:
-			case ISDN_PROTO_L2_V11038:
+		case ISDN_PROTO_L2_V11096:
+		case ISDN_PROTO_L2_V11019:
+		case ISDN_PROTO_L2_V11038:
 			/* If V.110 requested, but not supported by
 			 * HL-driver, set emulator-flag and change
 			 * Layer-2 to transparent
 			 */
-				if (!(features & l2_feature)) {
-					dev->v110emu[idx] = l2prot;
-					cmd->arg = (cmd->arg & 255) |
-						(ISDN_PROTO_L2_TRANS << 8);
-				} else
-					dev->v110emu[idx] = 0;
+			if (!(features & l2_feature)) {
+				dev->v110emu[idx] = l2prot;
+				cmd->arg = (cmd->arg & 255) |
+					(ISDN_PROTO_L2_TRANS << 8);
+			} else
+				dev->v110emu[idx] = 0;
 		}
 	}
 	return dev->drv[cmd->driver]->interface->command(cmd);
@@ -393,7 +393,7 @@ isdn_all_eaz(int di, int ch)
 }
 
 /*
- * Begin of a CAPI like LL<->HL interface, currently used only for 
+ * Begin of a CAPI like LL<->HL interface, currently used only for
  * supplementary service (CAPI 2.0 part III)
  */
 #include <linux/isdn/capicmd.h>
@@ -401,17 +401,17 @@ isdn_all_eaz(int di, int ch)
 static int
 isdn_capi_rec_hl_msg(capi_msg *cm)
 {
-	switch(cm->Command) {
-		case CAPI_FACILITY:
-			/* in the moment only handled in tty */
-			return(isdn_tty_capi_facility(cm));
-		default:
-			return(-1);
+	switch (cm->Command) {
+	case CAPI_FACILITY:
+		/* in the moment only handled in tty */
+		return (isdn_tty_capi_facility(cm));
+	default:
+		return (-1);
 	}
 }
 
 static int
-isdn_status_callback(isdn_ctrl * c)
+isdn_status_callback(isdn_ctrl *c)
 {
 	int di;
 	u_long flags;
@@ -424,314 +424,314 @@ isdn_status_callback(isdn_ctrl * c)
 	di = c->driver;
 	i = isdn_dc2minor(di, c->arg);
 	switch (c->command) {
-		case ISDN_STAT_BSENT:
-			if (i < 0)
-				return -1;
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			if (isdn_net_stat_callback(i, c))
-				return 0;
-			if (isdn_v110_stat_callback(i, c))
-				return 0;
-			if (isdn_tty_stat_callback(i, c))
-				return 0;
-			wake_up_interruptible(&dev->drv[di]->snd_waitq[c->arg]);
-			break;
-		case ISDN_STAT_STAVAIL:
-			dev->drv[di]->stavail += c->arg;
-			wake_up_interruptible(&dev->drv[di]->st_waitq);
-			break;
-		case ISDN_STAT_RUN:
-			dev->drv[di]->flags |= DRV_FLAG_RUNNING;
-			for (i = 0; i < ISDN_MAX_CHANNELS; i++)
-				if (dev->drvmap[i] == di)
-					isdn_all_eaz(di, dev->chanmap[i]);
-			set_global_features();
-			break;
-		case ISDN_STAT_STOP:
-			dev->drv[di]->flags &= ~DRV_FLAG_RUNNING;
-			break;
-		case ISDN_STAT_ICALL:
-			if (i < 0)
-				return -1;
+	case ISDN_STAT_BSENT:
+		if (i < 0)
+			return -1;
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		if (isdn_net_stat_callback(i, c))
+			return 0;
+		if (isdn_v110_stat_callback(i, c))
+			return 0;
+		if (isdn_tty_stat_callback(i, c))
+			return 0;
+		wake_up_interruptible(&dev->drv[di]->snd_waitq[c->arg]);
+		break;
+	case ISDN_STAT_STAVAIL:
+		dev->drv[di]->stavail += c->arg;
+		wake_up_interruptible(&dev->drv[di]->st_waitq);
+		break;
+	case ISDN_STAT_RUN:
+		dev->drv[di]->flags |= DRV_FLAG_RUNNING;
+		for (i = 0; i < ISDN_MAX_CHANNELS; i++)
+			if (dev->drvmap[i] == di)
+				isdn_all_eaz(di, dev->chanmap[i]);
+		set_global_features();
+		break;
+	case ISDN_STAT_STOP:
+		dev->drv[di]->flags &= ~DRV_FLAG_RUNNING;
+		break;
+	case ISDN_STAT_ICALL:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "ICALL (net): %d %ld %s\n", di, c->arg, c->parm.num);
+		printk(KERN_DEBUG "ICALL (net): %d %ld %s\n", di, c->arg, c->parm.num);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED) {
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED) {
+			cmd.driver = di;
+			cmd.arg = c->arg;
+			cmd.command = ISDN_CMD_HANGUP;
+			isdn_command(&cmd);
+			return 0;
+		}
+		/* Try to find a network-interface which will accept incoming call */
+		r = ((c->command == ISDN_STAT_ICALLW) ? 0 : isdn_net_find_icall(di, c->arg, i, &c->parm.setup));
+		switch (r) {
+		case 0:
+			/* No network-device replies.
+			 * Try ttyI's.
+			 * These return 0 on no match, 1 on match and
+			 * 3 on eventually match, if CID is longer.
+			 */
+			if (c->command == ISDN_STAT_ICALL)
+				if ((retval = isdn_tty_find_icall(di, c->arg, &c->parm.setup))) return (retval);
+#ifdef CONFIG_ISDN_DIVERSION
+			if (divert_if)
+				if ((retval = divert_if->stat_callback(c)))
+					return (retval); /* processed */
+#endif /* CONFIG_ISDN_DIVERSION */
+			if ((!retval) && (dev->drv[di]->flags & DRV_FLAG_REJBUS)) {
+				/* No tty responding */
 				cmd.driver = di;
 				cmd.arg = c->arg;
 				cmd.command = ISDN_CMD_HANGUP;
 				isdn_command(&cmd);
-				return 0;
+				retval = 2;
 			}
-			/* Try to find a network-interface which will accept incoming call */
-			r = ((c->command == ISDN_STAT_ICALLW) ? 0 : isdn_net_find_icall(di, c->arg, i, &c->parm.setup));
-			switch (r) {
-				case 0:
-					/* No network-device replies.
-					 * Try ttyI's.
-					 * These return 0 on no match, 1 on match and
-					 * 3 on eventually match, if CID is longer.
-					 */
-                                        if (c->command == ISDN_STAT_ICALL)
-					  if ((retval = isdn_tty_find_icall(di, c->arg, &c->parm.setup))) return(retval);
-#ifdef CONFIG_ISDN_DIVERSION 
-                                         if (divert_if)
-                 	                  if ((retval = divert_if->stat_callback(c))) 
-					    return(retval); /* processed */
-#endif /* CONFIG_ISDN_DIVERSION */                       
-					if ((!retval) && (dev->drv[di]->flags & DRV_FLAG_REJBUS)) {
-						/* No tty responding */
-						cmd.driver = di;
-						cmd.arg = c->arg;
-						cmd.command = ISDN_CMD_HANGUP;
-						isdn_command(&cmd);
-						retval = 2;
-					}
-					break;
-				case 1:
-					/* Schedule connection-setup */
-					isdn_net_dial();
-					cmd.driver = di;
-					cmd.arg = c->arg;
-					cmd.command = ISDN_CMD_ACCEPTD;
-					for ( p = dev->netdev; p; p = p->next )
-						if ( p->local->isdn_channel == cmd.arg )
-						{
-							strcpy( cmd.parm.setup.eazmsn, p->local->msn );
-							isdn_command(&cmd);
-							retval = 1;
-							break;
-						}
-					break;
-
-				case 2:	/* For calling back, first reject incoming call ... */
-				case 3:	/* Interface found, but down, reject call actively  */
-					retval = 2;
-					printk(KERN_INFO "isdn: Rejecting Call\n");
-					cmd.driver = di;
-					cmd.arg = c->arg;
-					cmd.command = ISDN_CMD_HANGUP;
+			break;
+		case 1:
+			/* Schedule connection-setup */
+			isdn_net_dial();
+			cmd.driver = di;
+			cmd.arg = c->arg;
+			cmd.command = ISDN_CMD_ACCEPTD;
+			for (p = dev->netdev; p; p = p->next)
+				if (p->local->isdn_channel == cmd.arg)
+				{
+					strcpy(cmd.parm.setup.eazmsn, p->local->msn);
 					isdn_command(&cmd);
-					if (r == 3)
-						break;
-					/* Fall through */
-				case 4:
-					/* ... then start callback. */
-					isdn_net_dial();
-					break;
-				case 5:
-					/* Number would eventually match, if longer */
-					retval = 3;
+					retval = 1;
 					break;
-			}
+				}
+			break;
+
+		case 2:	/* For calling back, first reject incoming call ... */
+		case 3:	/* Interface found, but down, reject call actively  */
+			retval = 2;
+			printk(KERN_INFO "isdn: Rejecting Call\n");
+			cmd.driver = di;
+			cmd.arg = c->arg;
+			cmd.command = ISDN_CMD_HANGUP;
+			isdn_command(&cmd);
+			if (r == 3)
+				break;
+			/* Fall through */
+		case 4:
+			/* ... then start callback. */
+			isdn_net_dial();
+			break;
+		case 5:
+			/* Number would eventually match, if longer */
+			retval = 3;
+			break;
+		}
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "ICALL: ret=%d\n", retval);
+		printk(KERN_DEBUG "ICALL: ret=%d\n", retval);
 #endif
-			return retval;
-			break;
-		case ISDN_STAT_CINF:
-			if (i < 0)
-				return -1;
+		return retval;
+		break;
+	case ISDN_STAT_CINF:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "CINF: %ld %s\n", c->arg, c->parm.num);
+		printk(KERN_DEBUG "CINF: %ld %s\n", c->arg, c->parm.num);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			if (strcmp(c->parm.num, "0"))
-				isdn_net_stat_callback(i, c);
-			isdn_tty_stat_callback(i, c);
-			break;
-		case ISDN_STAT_CAUSE:
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		if (strcmp(c->parm.num, "0"))
+			isdn_net_stat_callback(i, c);
+		isdn_tty_stat_callback(i, c);
+		break;
+	case ISDN_STAT_CAUSE:
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "CAUSE: %ld %s\n", c->arg, c->parm.num);
+		printk(KERN_DEBUG "CAUSE: %ld %s\n", c->arg, c->parm.num);
 #endif
-			printk(KERN_INFO "isdn: %s,ch%ld cause: %s\n",
-			       dev->drvid[di], c->arg, c->parm.num);
-			isdn_tty_stat_callback(i, c);
+		printk(KERN_INFO "isdn: %s,ch%ld cause: %s\n",
+		       dev->drvid[di], c->arg, c->parm.num);
+		isdn_tty_stat_callback(i, c);
 #ifdef CONFIG_ISDN_DIVERSION
-                        if (divert_if)
-                         divert_if->stat_callback(c); 
+		if (divert_if)
+			divert_if->stat_callback(c);
 #endif /* CONFIG_ISDN_DIVERSION */
-			break;
-		case ISDN_STAT_DISPLAY:
+		break;
+	case ISDN_STAT_DISPLAY:
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "DISPLAY: %ld %s\n", c->arg, c->parm.display);
+		printk(KERN_DEBUG "DISPLAY: %ld %s\n", c->arg, c->parm.display);
 #endif
-			isdn_tty_stat_callback(i, c);
+		isdn_tty_stat_callback(i, c);
 #ifdef CONFIG_ISDN_DIVERSION
-                        if (divert_if)
-                         divert_if->stat_callback(c); 
+		if (divert_if)
+			divert_if->stat_callback(c);
 #endif /* CONFIG_ISDN_DIVERSION */
-			break;
-		case ISDN_STAT_DCONN:
-			if (i < 0)
-				return -1;
+		break;
+	case ISDN_STAT_DCONN:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "DCONN: %ld\n", c->arg);
+		printk(KERN_DEBUG "DCONN: %ld\n", c->arg);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			/* Find any net-device, waiting for D-channel setup */
-			if (isdn_net_stat_callback(i, c))
-				break;
-			isdn_v110_stat_callback(i, c);
-			/* Find any ttyI, waiting for D-channel setup */
-			if (isdn_tty_stat_callback(i, c)) {
-				cmd.driver = di;
-				cmd.arg = c->arg;
-				cmd.command = ISDN_CMD_ACCEPTB;
-				isdn_command(&cmd);
-				break;
-			}
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		/* Find any net-device, waiting for D-channel setup */
+		if (isdn_net_stat_callback(i, c))
 			break;
-		case ISDN_STAT_DHUP:
-			if (i < 0)
-				return -1;
+		isdn_v110_stat_callback(i, c);
+		/* Find any ttyI, waiting for D-channel setup */
+		if (isdn_tty_stat_callback(i, c)) {
+			cmd.driver = di;
+			cmd.arg = c->arg;
+			cmd.command = ISDN_CMD_ACCEPTB;
+			isdn_command(&cmd);
+			break;
+		}
+		break;
+	case ISDN_STAT_DHUP:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "DHUP: %ld\n", c->arg);
+		printk(KERN_DEBUG "DHUP: %ld\n", c->arg);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			dev->drv[di]->online &= ~(1 << (c->arg));
-			isdn_info_update();
-			/* Signal hangup to network-devices */
-			if (isdn_net_stat_callback(i, c))
-				break;
-			isdn_v110_stat_callback(i, c);
-			if (isdn_tty_stat_callback(i, c))
-				break;
-#ifdef CONFIG_ISDN_DIVERSION
-                        if (divert_if)
-                         divert_if->stat_callback(c); 
-#endif /* CONFIG_ISDN_DIVERSION */
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		dev->drv[di]->online &= ~(1 << (c->arg));
+		isdn_info_update();
+		/* Signal hangup to network-devices */
+		if (isdn_net_stat_callback(i, c))
 			break;
+		isdn_v110_stat_callback(i, c);
+		if (isdn_tty_stat_callback(i, c))
 			break;
-		case ISDN_STAT_BCONN:
-			if (i < 0)
-				return -1;
+#ifdef CONFIG_ISDN_DIVERSION
+		if (divert_if)
+			divert_if->stat_callback(c);
+#endif /* CONFIG_ISDN_DIVERSION */
+		break;
+		break;
+	case ISDN_STAT_BCONN:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "BCONN: %ld\n", c->arg);
+		printk(KERN_DEBUG "BCONN: %ld\n", c->arg);
 #endif
-			/* Signal B-channel-connect to network-devices */
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			dev->drv[di]->online |= (1 << (c->arg));
-			isdn_info_update();
-			if (isdn_net_stat_callback(i, c))
-				break;
-			isdn_v110_stat_callback(i, c);
-			if (isdn_tty_stat_callback(i, c))
-				break;
+		/* Signal B-channel-connect to network-devices */
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		dev->drv[di]->online |= (1 << (c->arg));
+		isdn_info_update();
+		if (isdn_net_stat_callback(i, c))
+			break;
+		isdn_v110_stat_callback(i, c);
+		if (isdn_tty_stat_callback(i, c))
 			break;
-		case ISDN_STAT_BHUP:
-			if (i < 0)
-				return -1;
+		break;
+	case ISDN_STAT_BHUP:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "BHUP: %ld\n", c->arg);
+		printk(KERN_DEBUG "BHUP: %ld\n", c->arg);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			dev->drv[di]->online &= ~(1 << (c->arg));
-			isdn_info_update();
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		dev->drv[di]->online &= ~(1 << (c->arg));
+		isdn_info_update();
 #ifdef CONFIG_ISDN_X25
-			/* Signal hangup to network-devices */
-			if (isdn_net_stat_callback(i, c))
-				break;
+		/* Signal hangup to network-devices */
+		if (isdn_net_stat_callback(i, c))
+			break;
 #endif
-			isdn_v110_stat_callback(i, c);
-			if (isdn_tty_stat_callback(i, c))
-				break;
+		isdn_v110_stat_callback(i, c);
+		if (isdn_tty_stat_callback(i, c))
 			break;
-		case ISDN_STAT_NODCH:
-			if (i < 0)
-				return -1;
+		break;
+	case ISDN_STAT_NODCH:
+		if (i < 0)
+			return -1;
 #ifdef ISDN_DEBUG_STATCALLB
-			printk(KERN_DEBUG "NODCH: %ld\n", c->arg);
+		printk(KERN_DEBUG "NODCH: %ld\n", c->arg);
 #endif
-			if (dev->global_flags & ISDN_GLOBAL_STOPPED)
-				return 0;
-			if (isdn_net_stat_callback(i, c))
-				break;
-			if (isdn_tty_stat_callback(i, c))
-				break;
+		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
+			return 0;
+		if (isdn_net_stat_callback(i, c))
 			break;
-		case ISDN_STAT_ADDCH:
-			spin_lock_irqsave(&dev->lock, flags);
-			if (isdn_add_channels(dev->drv[di], di, c->arg, 1)) {
-				spin_unlock_irqrestore(&dev->lock, flags);
-				return -1;
-			}
-			spin_unlock_irqrestore(&dev->lock, flags);
-			isdn_info_update();
+		if (isdn_tty_stat_callback(i, c))
 			break;
-		case ISDN_STAT_DISCH:
-			spin_lock_irqsave(&dev->lock, flags);
-			for (i = 0; i < ISDN_MAX_CHANNELS; i++)
-				if ((dev->drvmap[i] == di) &&
-				    (dev->chanmap[i] == c->arg)) {
-				    if (c->parm.num[0])
-				      dev->usage[i] &= ~ISDN_USAGE_DISABLED;
-				    else
-				      if (USG_NONE(dev->usage[i])) {
-					dev->usage[i] |= ISDN_USAGE_DISABLED;
-				      }
-				      else 
-					retval = -1;
-				    break;
-				}
+		break;
+	case ISDN_STAT_ADDCH:
+		spin_lock_irqsave(&dev->lock, flags);
+		if (isdn_add_channels(dev->drv[di], di, c->arg, 1)) {
 			spin_unlock_irqrestore(&dev->lock, flags);
-			isdn_info_update();
-			break;
-		case ISDN_STAT_UNLOAD:
-			while (dev->drv[di]->locks > 0) {
-				isdn_unlock_driver(dev->drv[di]);
-			}
-			spin_lock_irqsave(&dev->lock, flags);
-			isdn_tty_stat_callback(i, c);
-			for (i = 0; i < ISDN_MAX_CHANNELS; i++)
-				if (dev->drvmap[i] == di) {
-					dev->drvmap[i] = -1;
-					dev->chanmap[i] = -1;
+			return -1;
+		}
+		spin_unlock_irqrestore(&dev->lock, flags);
+		isdn_info_update();
+		break;
+	case ISDN_STAT_DISCH:
+		spin_lock_irqsave(&dev->lock, flags);
+		for (i = 0; i < ISDN_MAX_CHANNELS; i++)
+			if ((dev->drvmap[i] == di) &&
+			    (dev->chanmap[i] == c->arg)) {
+				if (c->parm.num[0])
 					dev->usage[i] &= ~ISDN_USAGE_DISABLED;
-				}
-			dev->drivers--;
-			dev->channels -= dev->drv[di]->channels;
-			kfree(dev->drv[di]->rcverr);
-			kfree(dev->drv[di]->rcvcount);
-			for (i = 0; i < dev->drv[di]->channels; i++)
-				skb_queue_purge(&dev->drv[di]->rpqueue[i]);
-			kfree(dev->drv[di]->rpqueue);
-			kfree(dev->drv[di]->rcv_waitq);
-			kfree(dev->drv[di]);
-			dev->drv[di] = NULL;
-			dev->drvid[di][0] = '\0';
-			isdn_info_update();
-			set_global_features();
-			spin_unlock_irqrestore(&dev->lock, flags);
-			return 0;
-		case ISDN_STAT_L1ERR:
-			break;
-		case CAPI_PUT_MESSAGE:
-			return(isdn_capi_rec_hl_msg(&c->parm.cmsg));
+				else
+					if (USG_NONE(dev->usage[i])) {
+						dev->usage[i] |= ISDN_USAGE_DISABLED;
+					}
+					else
+						retval = -1;
+				break;
+			}
+		spin_unlock_irqrestore(&dev->lock, flags);
+		isdn_info_update();
+		break;
+	case ISDN_STAT_UNLOAD:
+		while (dev->drv[di]->locks > 0) {
+			isdn_unlock_driver(dev->drv[di]);
+		}
+		spin_lock_irqsave(&dev->lock, flags);
+		isdn_tty_stat_callback(i, c);
+		for (i = 0; i < ISDN_MAX_CHANNELS; i++)
+			if (dev->drvmap[i] == di) {
+				dev->drvmap[i] = -1;
+				dev->chanmap[i] = -1;
+				dev->usage[i] &= ~ISDN_USAGE_DISABLED;
+			}
+		dev->drivers--;
+		dev->channels -= dev->drv[di]->channels;
+		kfree(dev->drv[di]->rcverr);
+		kfree(dev->drv[di]->rcvcount);
+		for (i = 0; i < dev->drv[di]->channels; i++)
+			skb_queue_purge(&dev->drv[di]->rpqueue[i]);
+		kfree(dev->drv[di]->rpqueue);
+		kfree(dev->drv[di]->rcv_waitq);
+		kfree(dev->drv[di]);
+		dev->drv[di] = NULL;
+		dev->drvid[di][0] = '\0';
+		isdn_info_update();
+		set_global_features();
+		spin_unlock_irqrestore(&dev->lock, flags);
+		return 0;
+	case ISDN_STAT_L1ERR:
+		break;
+	case CAPI_PUT_MESSAGE:
+		return (isdn_capi_rec_hl_msg(&c->parm.cmsg));
 #ifdef CONFIG_ISDN_TTY_FAX
-		case ISDN_STAT_FAXIND:
-			isdn_tty_stat_callback(i, c);
-			break;
+	case ISDN_STAT_FAXIND:
+		isdn_tty_stat_callback(i, c);
+		break;
 #endif
 #ifdef CONFIG_ISDN_AUDIO
-		case ISDN_STAT_AUDIO:
-			isdn_tty_stat_callback(i, c);
-			break;
+	case ISDN_STAT_AUDIO:
+		isdn_tty_stat_callback(i, c);
+		break;
 #endif
 #ifdef CONFIG_ISDN_DIVERSION
-	        case ISDN_STAT_PROT:
-	        case ISDN_STAT_REDIR:
-                        if (divert_if)
-                          return(divert_if->stat_callback(c));
+	case ISDN_STAT_PROT:
+	case ISDN_STAT_REDIR:
+		if (divert_if)
+			return (divert_if->stat_callback(c));
 #endif /* CONFIG_ISDN_DIVERSION */
-		default:
-			return -1;
+	default:
+		return -1;
 	}
 	return 0;
 }
@@ -755,17 +755,17 @@ isdn_getnum(char **p)
  * isdn_readbchan() tries to get data from the read-queue.
  * It MUST be called with interrupts off.
  *
- * Be aware that this is not an atomic operation when sleep != 0, even though 
+ * Be aware that this is not an atomic operation when sleep != 0, even though
  * interrupts are turned off! Well, like that we are currently only called
  * on behalf of a read system call on raw device files (which are documented
  * to be dangerous and for debugging purpose only). The inode semaphore
  * takes care that this is not called for the same minor device number while
  * we are sleeping, but access is not serialized against simultaneous read()
  * from the corresponding ttyI device. Can other ugly events, like changes
- * of the mapping (di,ch)<->minor, happen during the sleep? --he 
+ * of the mapping (di,ch)<->minor, happen during the sleep? --he
  */
 int
-isdn_readbchan(int di, int channel, u_char * buf, u_char * fp, int len, wait_queue_head_t *sleep)
+isdn_readbchan(int di, int channel, u_char *buf, u_char *fp, int len, wait_queue_head_t *sleep)
 {
 	int count;
 	int count_pull;
@@ -890,10 +890,10 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 	if (!dev->drv[di])
 		return 0;
 	if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
-			return 0;
+		return 0;
 
 	len = tty_buffer_request_room(tty, dev->drv[di]->rcvcount[channel]);
-	if(len == 0)
+	if (len == 0)
 		return len;
 
 	count = 0;
@@ -912,7 +912,7 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 			count_pull = count_put = 0;
 			while ((count_pull < skb->len) && (len > 0)) {
 				/* push every character but the last to the tty buffer directly */
-				if ( count_put )
+				if (count_put)
 					tty_insert_flip_char(tty, last, TTY_NORMAL);
 				len--;
 				if (dev->drv[di]->DLEflag & DLEmask) {
@@ -940,7 +940,7 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 				dflag = 0;
 			}
 			count_put = count_pull;
-			if(count_put > 1)
+			if (count_put > 1)
 				tty_insert_flip_string(tty, skb->data, count_put - 1);
 			last = skb->data[count_put - 1];
 			len -= count_put;
@@ -952,7 +952,7 @@ isdn_readbchan_tty(int di, int channel, struct tty_struct *tty, int cisco_hack)
 			/* We got all the data in this buff.
 			 * Now we can dequeue it.
 			 */
-			if(cisco_hack)
+			if (cisco_hack)
 				tty_insert_flip_char(tty, last, 0xFF);
 			else
 				tty_insert_flip_char(tty, last, TTY_NORMAL);
@@ -1057,7 +1057,7 @@ isdn_info_update(void)
 }
 
 static ssize_t
-isdn_read(struct file *file, char __user *buf, size_t count, loff_t * off)
+isdn_read(struct file *file, char __user *buf, size_t count, loff_t *off)
 {
 	uint minor = iminor(file->f_path.dentry->d_inode);
 	int len = 0;
@@ -1112,7 +1112,7 @@ isdn_read(struct file *file, char __user *buf, size_t count, loff_t * off)
 		len = isdn_readbchan(drvidx, chidx, p, NULL, count,
 				     &dev->drv[drvidx]->rcv_waitq[chidx]);
 		*off += len;
-		if (copy_to_user(buf,p,len)) 
+		if (copy_to_user(buf, p, len))
 			len = -EFAULT;
 		kfree(p);
 		retval = len;
@@ -1135,7 +1135,7 @@ isdn_read(struct file *file, char __user *buf, size_t count, loff_t * off)
 			if (count > dev->drv[drvidx]->stavail)
 				count = dev->drv[drvidx]->stavail;
 			len = dev->drv[drvidx]->interface->readstat(buf, count,
-				drvidx, isdn_minor2chan(minor - ISDN_MINOR_CTRL));
+								    drvidx, isdn_minor2chan(minor - ISDN_MINOR_CTRL));
 			if (len < 0) {
 				retval = len;
 				goto out;
@@ -1158,13 +1158,13 @@ isdn_read(struct file *file, char __user *buf, size_t count, loff_t * off)
 	}
 #endif
 	retval = -ENODEV;
- out:
+out:
 	mutex_unlock(&isdn_mutex);
 	return retval;
 }
 
 static ssize_t
-isdn_write(struct file *file, const char __user *buf, size_t count, loff_t * off)
+isdn_write(struct file *file, const char __user *buf, size_t count, loff_t *off)
 {
 	uint minor = iminor(file->f_path.dentry->d_inode);
 	int drvidx;
@@ -1204,11 +1204,11 @@ isdn_write(struct file *file, const char __user *buf, size_t count, loff_t * off
 		 *
 		 if (!(dev->drv[drvidx]->flags & DRV_FLAG_RUNNING))
 		 return -ENODEV;
-		 */
+		*/
 		if (dev->drv[drvidx]->interface->writecmd)
 			retval = dev->drv[drvidx]->interface->
 				writecmd(buf, count, drvidx,
-				isdn_minor2chan(minor - ISDN_MINOR_CTRL));
+					 isdn_minor2chan(minor - ISDN_MINOR_CTRL));
 		else
 			retval = count;
 		goto out;
@@ -1220,13 +1220,13 @@ isdn_write(struct file *file, const char __user *buf, size_t count, loff_t * off
 	}
 #endif
 	retval = -ENODEV;
- out:
+out:
 	mutex_unlock(&isdn_mutex);
 	return retval;
 }
 
 static unsigned int
-isdn_poll(struct file *file, poll_table * wait)
+isdn_poll(struct file *file, poll_table *wait)
 {
 	unsigned int mask = 0;
 	unsigned int minor = iminor(file->f_path.dentry->d_inode);
@@ -1261,7 +1261,7 @@ isdn_poll(struct file *file, poll_table * wait)
 	}
 #endif
 	mask = POLLERR;
- out:
+out:
 	mutex_unlock(&isdn_mutex);
 	return mask;
 }
@@ -1294,38 +1294,38 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
 
 	if (minor == ISDN_MINOR_STATUS) {
 		switch (cmd) {
-			case IIOCGETDVR:
-				return (TTY_DV +
-					(NET_DV << 8) +
-					(INF_DV << 16));
-			case IIOCGETCPS:
-				if (arg) {
-					ulong __user *p = argp;
-					int i;
-					if (!access_ok(VERIFY_WRITE, p,
-							sizeof(ulong) * ISDN_MAX_CHANNELS * 2))
-						return -EFAULT;
-					for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
-						put_user(dev->ibytes[i], p++);
-						put_user(dev->obytes[i], p++);
-					}
-					return 0;
-				} else
-					return -EINVAL;
-				break;
+		case IIOCGETDVR:
+			return (TTY_DV +
+				(NET_DV << 8) +
+				(INF_DV << 16));
+		case IIOCGETCPS:
+			if (arg) {
+				ulong __user *p = argp;
+				int i;
+				if (!access_ok(VERIFY_WRITE, p,
+					       sizeof(ulong) * ISDN_MAX_CHANNELS * 2))
+					return -EFAULT;
+				for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
+					put_user(dev->ibytes[i], p++);
+					put_user(dev->obytes[i], p++);
+				}
+				return 0;
+			} else
+				return -EINVAL;
+			break;
 #ifdef CONFIG_NETDEVICES
-			case IIOCNETGPN:
-				/* Get peer phone number of a connected 
-				 * isdn network interface */
-				if (arg) {
-					if (copy_from_user(&phone, argp, sizeof(phone)))
-						return -EFAULT;
-					return isdn_net_getpeer(&phone, argp);
-				} else
-					return -EINVAL;
-#endif
-			default:
+		case IIOCNETGPN:
+			/* Get peer phone number of a connected
+			 * isdn network interface */
+			if (arg) {
+				if (copy_from_user(&phone, argp, sizeof(phone)))
+					return -EFAULT;
+				return isdn_net_getpeer(&phone, argp);
+			} else
 				return -EINVAL;
+#endif
+		default:
+			return -EINVAL;
 		}
 	}
 	if (!dev->drivers)
@@ -1347,360 +1347,360 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
  * are serialized by means of a semaphore.
  */
 		switch (cmd) {
-			case IIOCNETDWRSET:
-				printk(KERN_INFO "INFO: ISDN_DW_ABC_EXTENSION not enabled\n");
-				return(-EINVAL);
-			case IIOCNETLCR:
-				printk(KERN_INFO "INFO: ISDN_ABC_LCR_SUPPORT not enabled\n");
-				return -ENODEV;
+		case IIOCNETDWRSET:
+			printk(KERN_INFO "INFO: ISDN_DW_ABC_EXTENSION not enabled\n");
+			return (-EINVAL);
+		case IIOCNETLCR:
+			printk(KERN_INFO "INFO: ISDN_ABC_LCR_SUPPORT not enabled\n");
+			return -ENODEV;
 #ifdef CONFIG_NETDEVICES
-			case IIOCNETAIF:
-				/* Add a network-interface */
-				if (arg) {
-					if (copy_from_user(name, argp, sizeof(name)))
-						return -EFAULT;
-					s = name;
+		case IIOCNETAIF:
+			/* Add a network-interface */
+			if (arg) {
+				if (copy_from_user(name, argp, sizeof(name)))
+					return -EFAULT;
+				s = name;
+			} else {
+				s = NULL;
+			}
+			ret = mutex_lock_interruptible(&dev->mtx);
+			if (ret) return ret;
+			if ((s = isdn_net_new(s, NULL))) {
+				if (copy_to_user(argp, s, strlen(s) + 1)) {
+					ret = -EFAULT;
+				} else {
+					ret = 0;
+				}
+			} else
+				ret = -ENODEV;
+			mutex_unlock(&dev->mtx);
+			return ret;
+		case IIOCNETASL:
+			/* Add a slave to a network-interface */
+			if (arg) {
+				if (copy_from_user(bname, argp, sizeof(bname) - 1))
+					return -EFAULT;
+			} else
+				return -EINVAL;
+			ret = mutex_lock_interruptible(&dev->mtx);
+			if (ret) return ret;
+			if ((s = isdn_net_newslave(bname))) {
+				if (copy_to_user(argp, s, strlen(s) + 1)) {
+					ret = -EFAULT;
 				} else {
-					s = NULL;
+					ret = 0;
 				}
+			} else
+				ret = -ENODEV;
+			mutex_unlock(&dev->mtx);
+			return ret;
+		case IIOCNETDIF:
+			/* Delete a network-interface */
+			if (arg) {
+				if (copy_from_user(name, argp, sizeof(name)))
+					return -EFAULT;
 				ret = mutex_lock_interruptible(&dev->mtx);
-				if( ret ) return ret;
-				if ((s = isdn_net_new(s, NULL))) {
-					if (copy_to_user(argp, s, strlen(s) + 1)){
-						ret = -EFAULT;
-					} else {
-						ret = 0;
-					}
-				} else
-					ret = -ENODEV;
+				if (ret) return ret;
+				ret = isdn_net_rm(name);
 				mutex_unlock(&dev->mtx);
 				return ret;
-			case IIOCNETASL:
-				/* Add a slave to a network-interface */
-				if (arg) {
-					if (copy_from_user(bname, argp, sizeof(bname) - 1))
+			} else
+				return -EINVAL;
+		case IIOCNETSCF:
+			/* Set configurable parameters of a network-interface */
+			if (arg) {
+				if (copy_from_user(&cfg, argp, sizeof(cfg)))
+					return -EFAULT;
+				return isdn_net_setcfg(&cfg);
+			} else
+				return -EINVAL;
+		case IIOCNETGCF:
+			/* Get configurable parameters of a network-interface */
+			if (arg) {
+				if (copy_from_user(&cfg, argp, sizeof(cfg)))
+					return -EFAULT;
+				if (!(ret = isdn_net_getcfg(&cfg))) {
+					if (copy_to_user(argp, &cfg, sizeof(cfg)))
 						return -EFAULT;
-				} else
-					return -EINVAL;
+				}
+				return ret;
+			} else
+				return -EINVAL;
+		case IIOCNETANM:
+			/* Add a phone-number to a network-interface */
+			if (arg) {
+				if (copy_from_user(&phone, argp, sizeof(phone)))
+					return -EFAULT;
 				ret = mutex_lock_interruptible(&dev->mtx);
-				if( ret ) return ret;
-				if ((s = isdn_net_newslave(bname))) {
-					if (copy_to_user(argp, s, strlen(s) + 1)){
-						ret = -EFAULT;
-					} else {
-						ret = 0;
-					}
-				} else
-					ret = -ENODEV;
+				if (ret) return ret;
+				ret = isdn_net_addphone(&phone);
 				mutex_unlock(&dev->mtx);
 				return ret;
-			case IIOCNETDIF:
-				/* Delete a network-interface */
-				if (arg) {
-					if (copy_from_user(name, argp, sizeof(name)))
-						return -EFAULT;
-					ret = mutex_lock_interruptible(&dev->mtx);
-					if( ret ) return ret;
-					ret = isdn_net_rm(name);
-					mutex_unlock(&dev->mtx);
-					return ret;
-				} else
-					return -EINVAL;
-			case IIOCNETSCF:
-				/* Set configurable parameters of a network-interface */
-				if (arg) {
-					if (copy_from_user(&cfg, argp, sizeof(cfg)))
-						return -EFAULT;
-					return isdn_net_setcfg(&cfg);
-				} else
-					return -EINVAL;
-			case IIOCNETGCF:
-				/* Get configurable parameters of a network-interface */
-				if (arg) {
-					if (copy_from_user(&cfg, argp, sizeof(cfg)))
-						return -EFAULT;
-					if (!(ret = isdn_net_getcfg(&cfg))) {
-						if (copy_to_user(argp, &cfg, sizeof(cfg)))
-							return -EFAULT;
-					}
-					return ret;
-				} else
-					return -EINVAL;
-			case IIOCNETANM:
-				/* Add a phone-number to a network-interface */
-				if (arg) {
-					if (copy_from_user(&phone, argp, sizeof(phone)))
-						return -EFAULT;
-					ret = mutex_lock_interruptible(&dev->mtx);
-					if( ret ) return ret;
-					ret = isdn_net_addphone(&phone);
-					mutex_unlock(&dev->mtx);
-					return ret;
-				} else
-					return -EINVAL;
-			case IIOCNETGNM:
-				/* Get list of phone-numbers of a network-interface */
-				if (arg) {
-					if (copy_from_user(&phone, argp, sizeof(phone)))
-						return -EFAULT;
-					ret = mutex_lock_interruptible(&dev->mtx);
-					if( ret ) return ret;
-					ret = isdn_net_getphones(&phone, argp);
-					mutex_unlock(&dev->mtx);
-					return ret;
-				} else
-					return -EINVAL;
-			case IIOCNETDNM:
-				/* Delete a phone-number of a network-interface */
-				if (arg) {
-					if (copy_from_user(&phone, argp, sizeof(phone)))
-						return -EFAULT;
-					ret = mutex_lock_interruptible(&dev->mtx);
-					if( ret ) return ret;
-					ret = isdn_net_delphone(&phone);
-					mutex_unlock(&dev->mtx);
-					return ret;
-				} else
-					return -EINVAL;
-			case IIOCNETDIL:
-				/* Force dialing of a network-interface */
-				if (arg) {
-					if (copy_from_user(name, argp, sizeof(name)))
-						return -EFAULT;
-					return isdn_net_force_dial(name);
-				} else
-					return -EINVAL;
-#ifdef CONFIG_ISDN_PPP
-			case IIOCNETALN:
-				if (!arg)
-					return -EINVAL;
-				if (copy_from_user(name, argp, sizeof(name)))
+			} else
+				return -EINVAL;
+		case IIOCNETGNM:
+			/* Get list of phone-numbers of a network-interface */
+			if (arg) {
+				if (copy_from_user(&phone, argp, sizeof(phone)))
 					return -EFAULT;
-				return isdn_ppp_dial_slave(name);
-			case IIOCNETDLN:
-				if (!arg)
-					return -EINVAL;
-				if (copy_from_user(name, argp, sizeof(name)))
+				ret = mutex_lock_interruptible(&dev->mtx);
+				if (ret) return ret;
+				ret = isdn_net_getphones(&phone, argp);
+				mutex_unlock(&dev->mtx);
+				return ret;
+			} else
+				return -EINVAL;
+		case IIOCNETDNM:
+			/* Delete a phone-number of a network-interface */
+			if (arg) {
+				if (copy_from_user(&phone, argp, sizeof(phone)))
 					return -EFAULT;
-				return isdn_ppp_hangup_slave(name);
-#endif
-			case IIOCNETHUP:
-				/* Force hangup of a network-interface */
-				if (!arg)
-					return -EINVAL;
+				ret = mutex_lock_interruptible(&dev->mtx);
+				if (ret) return ret;
+				ret = isdn_net_delphone(&phone);
+				mutex_unlock(&dev->mtx);
+				return ret;
+			} else
+				return -EINVAL;
+		case IIOCNETDIL:
+			/* Force dialing of a network-interface */
+			if (arg) {
 				if (copy_from_user(name, argp, sizeof(name)))
 					return -EFAULT;
-				return isdn_net_force_hangup(name);
-				break;
+				return isdn_net_force_dial(name);
+			} else
+				return -EINVAL;
+#ifdef CONFIG_ISDN_PPP
+		case IIOCNETALN:
+			if (!arg)
+				return -EINVAL;
+			if (copy_from_user(name, argp, sizeof(name)))
+				return -EFAULT;
+			return isdn_ppp_dial_slave(name);
+		case IIOCNETDLN:
+			if (!arg)
+				return -EINVAL;
+			if (copy_from_user(name, argp, sizeof(name)))
+				return -EFAULT;
+			return isdn_ppp_hangup_slave(name);
+#endif
+		case IIOCNETHUP:
+			/* Force hangup of a network-interface */
+			if (!arg)
+				return -EINVAL;
+			if (copy_from_user(name, argp, sizeof(name)))
+				return -EFAULT;
+			return isdn_net_force_hangup(name);
+			break;
 #endif                          /* CONFIG_NETDEVICES */
-			case IIOCSETVER:
-				dev->net_verbose = arg;
-				printk(KERN_INFO "isdn: Verbose-Level is %d\n", dev->net_verbose);
-				return 0;
-			case IIOCSETGST:
-				if (arg)
-					dev->global_flags |= ISDN_GLOBAL_STOPPED;
-				else
-					dev->global_flags &= ~ISDN_GLOBAL_STOPPED;
-				printk(KERN_INFO "isdn: Global Mode %s\n",
-				       (dev->global_flags & ISDN_GLOBAL_STOPPED) ? "stopped" : "running");
-				return 0;
-			case IIOCSETBRJ:
-				drvidx = -1;
-				if (arg) {
-					int i;
-					char *p;
-					if (copy_from_user(&iocts, argp,
-					     sizeof(isdn_ioctl_struct)))
-						return -EFAULT;
-					iocts.drvid[sizeof(iocts.drvid)-1] = 0;
-					if (strlen(iocts.drvid)) {
-						if ((p = strchr(iocts.drvid, ',')))
-							*p = 0;
-						drvidx = -1;
-						for (i = 0; i < ISDN_MAX_DRIVERS; i++)
-							if (!(strcmp(dev->drvid[i], iocts.drvid))) {
-								drvidx = i;
-								break;
-							}
-					}
+		case IIOCSETVER:
+			dev->net_verbose = arg;
+			printk(KERN_INFO "isdn: Verbose-Level is %d\n", dev->net_verbose);
+			return 0;
+		case IIOCSETGST:
+			if (arg)
+				dev->global_flags |= ISDN_GLOBAL_STOPPED;
+			else
+				dev->global_flags &= ~ISDN_GLOBAL_STOPPED;
+			printk(KERN_INFO "isdn: Global Mode %s\n",
+			       (dev->global_flags & ISDN_GLOBAL_STOPPED) ? "stopped" : "running");
+			return 0;
+		case IIOCSETBRJ:
+			drvidx = -1;
+			if (arg) {
+				int i;
+				char *p;
+				if (copy_from_user(&iocts, argp,
+						   sizeof(isdn_ioctl_struct)))
+					return -EFAULT;
+				iocts.drvid[sizeof(iocts.drvid) - 1] = 0;
+				if (strlen(iocts.drvid)) {
+					if ((p = strchr(iocts.drvid, ',')))
+						*p = 0;
+					drvidx = -1;
+					for (i = 0; i < ISDN_MAX_DRIVERS; i++)
+						if (!(strcmp(dev->drvid[i], iocts.drvid))) {
+							drvidx = i;
+							break;
+						}
 				}
-				if (drvidx == -1)
-					return -ENODEV;
-				if (iocts.arg)
-					dev->drv[drvidx]->flags |= DRV_FLAG_REJBUS;
-				else
-					dev->drv[drvidx]->flags &= ~DRV_FLAG_REJBUS;
-				return 0;
-			case IIOCSIGPRF:
-				dev->profd = current;
-				return 0;
-				break;
-			case IIOCGETPRF:
-				/* Get all Modem-Profiles */
-				if (arg) {
-					char __user *p = argp;
-					int i;
-
-					if (!access_ok(VERIFY_WRITE, argp,
-					(ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
-						   * ISDN_MAX_CHANNELS))
+			}
+			if (drvidx == -1)
+				return -ENODEV;
+			if (iocts.arg)
+				dev->drv[drvidx]->flags |= DRV_FLAG_REJBUS;
+			else
+				dev->drv[drvidx]->flags &= ~DRV_FLAG_REJBUS;
+			return 0;
+		case IIOCSIGPRF:
+			dev->profd = current;
+			return 0;
+			break;
+		case IIOCGETPRF:
+			/* Get all Modem-Profiles */
+			if (arg) {
+				char __user *p = argp;
+				int i;
+
+				if (!access_ok(VERIFY_WRITE, argp,
+					       (ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
+					       * ISDN_MAX_CHANNELS))
+					return -EFAULT;
+
+				for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
+					if (copy_to_user(p, dev->mdm.info[i].emu.profile,
+							 ISDN_MODEM_NUMREG))
+						return -EFAULT;
+					p += ISDN_MODEM_NUMREG;
+					if (copy_to_user(p, dev->mdm.info[i].emu.pmsn, ISDN_MSNLEN))
 						return -EFAULT;
+					p += ISDN_MSNLEN;
+					if (copy_to_user(p, dev->mdm.info[i].emu.plmsn, ISDN_LMSNLEN))
+						return -EFAULT;
+					p += ISDN_LMSNLEN;
+				}
+				return (ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN) * ISDN_MAX_CHANNELS;
+			} else
+				return -EINVAL;
+			break;
+		case IIOCSETPRF:
+			/* Set all Modem-Profiles */
+			if (arg) {
+				char __user *p = argp;
+				int i;
+
+				if (!access_ok(VERIFY_READ, argp,
+					       (ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
+					       * ISDN_MAX_CHANNELS))
+					return -EFAULT;
 
-					for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
-						if (copy_to_user(p, dev->mdm.info[i].emu.profile,
-						      ISDN_MODEM_NUMREG))
-							return -EFAULT;
-						p += ISDN_MODEM_NUMREG;
-						if (copy_to_user(p, dev->mdm.info[i].emu.pmsn, ISDN_MSNLEN))
-							return -EFAULT;
-						p += ISDN_MSNLEN;
-						if (copy_to_user(p, dev->mdm.info[i].emu.plmsn, ISDN_LMSNLEN))
-							return -EFAULT;
-						p += ISDN_LMSNLEN;
-					}
-					return (ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN) * ISDN_MAX_CHANNELS;
-				} else
-					return -EINVAL;
-				break;
-			case IIOCSETPRF:
-				/* Set all Modem-Profiles */
-				if (arg) {
-					char __user *p = argp;
-					int i;
-
-					if (!access_ok(VERIFY_READ, argp,
-					(ISDN_MODEM_NUMREG + ISDN_MSNLEN + ISDN_LMSNLEN)
-						   * ISDN_MAX_CHANNELS))
+				for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
+					if (copy_from_user(dev->mdm.info[i].emu.profile, p,
+							   ISDN_MODEM_NUMREG))
+						return -EFAULT;
+					p += ISDN_MODEM_NUMREG;
+					if (copy_from_user(dev->mdm.info[i].emu.plmsn, p, ISDN_LMSNLEN))
 						return -EFAULT;
+					p += ISDN_LMSNLEN;
+					if (copy_from_user(dev->mdm.info[i].emu.pmsn, p, ISDN_MSNLEN))
+						return -EFAULT;
+					p += ISDN_MSNLEN;
+				}
+				return 0;
+			} else
+				return -EINVAL;
+			break;
+		case IIOCSETMAP:
+		case IIOCGETMAP:
+			/* Set/Get MSN->EAZ-Mapping for a driver */
+			if (arg) {
 
-					for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
-						if (copy_from_user(dev->mdm.info[i].emu.profile, p,
-						     ISDN_MODEM_NUMREG))
-							return -EFAULT;
-						p += ISDN_MODEM_NUMREG;
-						if (copy_from_user(dev->mdm.info[i].emu.plmsn, p, ISDN_LMSNLEN))
-							return -EFAULT;
-						p += ISDN_LMSNLEN;
-						if (copy_from_user(dev->mdm.info[i].emu.pmsn, p, ISDN_MSNLEN))
-							return -EFAULT;
-						p += ISDN_MSNLEN;
-					}
-					return 0;
+				if (copy_from_user(&iocts, argp,
+						   sizeof(isdn_ioctl_struct)))
+					return -EFAULT;
+				iocts.drvid[sizeof(iocts.drvid) - 1] = 0;
+				if (strlen(iocts.drvid)) {
+					drvidx = -1;
+					for (i = 0; i < ISDN_MAX_DRIVERS; i++)
+						if (!(strcmp(dev->drvid[i], iocts.drvid))) {
+							drvidx = i;
+							break;
+						}
 				} else
-					return -EINVAL;
-				break;
-			case IIOCSETMAP:
-			case IIOCGETMAP:
-				/* Set/Get MSN->EAZ-Mapping for a driver */
-				if (arg) {
+					drvidx = 0;
+				if (drvidx == -1)
+					return -ENODEV;
+				if (cmd == IIOCSETMAP) {
+					int loop = 1;
 
-					if (copy_from_user(&iocts, argp,
-					     sizeof(isdn_ioctl_struct)))
-						return -EFAULT;
-					iocts.drvid[sizeof(iocts.drvid)-1] = 0;
-					if (strlen(iocts.drvid)) {
-						drvidx = -1;
-						for (i = 0; i < ISDN_MAX_DRIVERS; i++)
-							if (!(strcmp(dev->drvid[i], iocts.drvid))) {
-								drvidx = i;
+					p = (char __user *) iocts.arg;
+					i = 0;
+					while (loop) {
+						int j = 0;
+
+						while (1) {
+							if (!access_ok(VERIFY_READ, p, 1))
+								return -EFAULT;
+							get_user(bname[j], p++);
+							switch (bname[j]) {
+							case '\0':
+								loop = 0;
+								/* Fall through */
+							case ',':
+								bname[j] = '\0';
+								strcpy(dev->drv[drvidx]->msn2eaz[i], bname);
+								j = ISDN_MSNLEN;
 								break;
+							default:
+								j++;
 							}
-					} else
-						drvidx = 0;
-					if (drvidx == -1)
-						return -ENODEV;
-					if (cmd == IIOCSETMAP) {
-						int loop = 1;
-
-						p = (char __user *) iocts.arg;
-						i = 0;
-						while (loop) {
-							int j = 0;
-
-							while (1) {
-								if (!access_ok(VERIFY_READ, p, 1))
-									return -EFAULT;
-								get_user(bname[j], p++);
-								switch (bname[j]) {
-									case '\0':
-										loop = 0;
-										/* Fall through */
-									case ',':
-										bname[j] = '\0';
-										strcpy(dev->drv[drvidx]->msn2eaz[i], bname);
-										j = ISDN_MSNLEN;
-										break;
-									default:
-										j++;
-								}
-								if (j >= ISDN_MSNLEN)
-									break;
-							}
-							if (++i > 9)
+							if (j >= ISDN_MSNLEN)
 								break;
 						}
-					} else {
-						p = (char __user *) iocts.arg;
-						for (i = 0; i < 10; i++) {
-							snprintf(bname, sizeof(bname), "%s%s",
-								strlen(dev->drv[drvidx]->msn2eaz[i]) ?
-								dev->drv[drvidx]->msn2eaz[i] : "_",
-								(i < 9) ? "," : "\0");
-							if (copy_to_user(p, bname, strlen(bname) + 1))
-								return -EFAULT;
-							p += strlen(bname);
-						}
+						if (++i > 9)
+							break;
 					}
-					return 0;
-				} else
-					return -EINVAL;
-			case IIOCDBGVAR:
-				if (arg) {
-					if (copy_to_user(argp, &dev, sizeof(ulong)))
-						return -EFAULT;
-					return 0;
-				} else
-					return -EINVAL;
-				break;
-			default:
-				if ((cmd & IIOCDRVCTL) == IIOCDRVCTL)
-					cmd = ((cmd >> _IOC_NRSHIFT) & _IOC_NRMASK) & ISDN_DRVIOCTL_MASK;
-				else
-					return -EINVAL;
-				if (arg) {
-					int i;
-					char *p;
-					if (copy_from_user(&iocts, argp, sizeof(isdn_ioctl_struct)))
-						return -EFAULT;
-					iocts.drvid[sizeof(iocts.drvid)-1] = 0;
-					if (strlen(iocts.drvid)) {
-						if ((p = strchr(iocts.drvid, ',')))
-							*p = 0;
-						drvidx = -1;
-						for (i = 0; i < ISDN_MAX_DRIVERS; i++)
-							if (!(strcmp(dev->drvid[i], iocts.drvid))) {
-								drvidx = i;
-								break;
-							}
-					} else
-						drvidx = 0;
-					if (drvidx == -1)
-						return -ENODEV;
-					if (!access_ok(VERIFY_WRITE, argp,
-					     sizeof(isdn_ioctl_struct)))
-						return -EFAULT;
-					c.driver = drvidx;
-					c.command = ISDN_CMD_IOCTL;
-					c.arg = cmd;
-					memcpy(c.parm.num, &iocts.arg, sizeof(ulong));
-					ret = isdn_command(&c);
-					memcpy(&iocts.arg, c.parm.num, sizeof(ulong));
-					if (copy_to_user(argp, &iocts, sizeof(isdn_ioctl_struct)))
-						return -EFAULT;
-					return ret;
+				} else {
+					p = (char __user *) iocts.arg;
+					for (i = 0; i < 10; i++) {
+						snprintf(bname, sizeof(bname), "%s%s",
+							 strlen(dev->drv[drvidx]->msn2eaz[i]) ?
+							 dev->drv[drvidx]->msn2eaz[i] : "_",
+							 (i < 9) ? "," : "\0");
+						if (copy_to_user(p, bname, strlen(bname) + 1))
+							return -EFAULT;
+						p += strlen(bname);
+					}
+				}
+				return 0;
+			} else
+				return -EINVAL;
+		case IIOCDBGVAR:
+			if (arg) {
+				if (copy_to_user(argp, &dev, sizeof(ulong)))
+					return -EFAULT;
+				return 0;
+			} else
+				return -EINVAL;
+			break;
+		default:
+			if ((cmd & IIOCDRVCTL) == IIOCDRVCTL)
+				cmd = ((cmd >> _IOC_NRSHIFT) & _IOC_NRMASK) & ISDN_DRVIOCTL_MASK;
+			else
+				return -EINVAL;
+			if (arg) {
+				int i;
+				char *p;
+				if (copy_from_user(&iocts, argp, sizeof(isdn_ioctl_struct)))
+					return -EFAULT;
+				iocts.drvid[sizeof(iocts.drvid) - 1] = 0;
+				if (strlen(iocts.drvid)) {
+					if ((p = strchr(iocts.drvid, ',')))
+						*p = 0;
+					drvidx = -1;
+					for (i = 0; i < ISDN_MAX_DRIVERS; i++)
+						if (!(strcmp(dev->drvid[i], iocts.drvid))) {
+							drvidx = i;
+							break;
+						}
 				} else
-					return -EINVAL;
+					drvidx = 0;
+				if (drvidx == -1)
+					return -ENODEV;
+				if (!access_ok(VERIFY_WRITE, argp,
+					       sizeof(isdn_ioctl_struct)))
+					return -EFAULT;
+				c.driver = drvidx;
+				c.command = ISDN_CMD_IOCTL;
+				c.arg = cmd;
+				memcpy(c.parm.num, &iocts.arg, sizeof(ulong));
+				ret = isdn_command(&c);
+				memcpy(&iocts.arg, c.parm.num, sizeof(ulong));
+				if (copy_to_user(argp, &iocts, sizeof(isdn_ioctl_struct)))
+					return -EFAULT;
+				return ret;
+			} else
+				return -EINVAL;
 		}
 	}
 #ifdef CONFIG_ISDN_PPP
@@ -1788,7 +1788,7 @@ isdn_open(struct inode *ino, struct file *filep)
 		goto out;
 	}
 #endif
- out:
+out:
 	nonseekable_open(ino, filep);
 	mutex_unlock(&isdn_mutex);
 	return retval;
@@ -1832,7 +1832,7 @@ isdn_close(struct inode *ino, struct file *filep)
 		isdn_ppp_release(minor - ISDN_MINOR_PPP, filep);
 #endif
 
- out:
+out:
 	mutex_unlock(&isdn_mutex);
 	return 0;
 }
@@ -1868,14 +1868,14 @@ isdn_map_eaz2msn(char *msn, int di)
  * Find an unused ISDN-channel, whose feature-flags match the
  * given L2- and L3-protocols.
  */
-#define L2V (~(ISDN_FEATURE_L2_V11096|ISDN_FEATURE_L2_V11019|ISDN_FEATURE_L2_V11038))
+#define L2V (~(ISDN_FEATURE_L2_V11096 | ISDN_FEATURE_L2_V11019 | ISDN_FEATURE_L2_V11038))
 
 /*
  * This function must be called with holding the dev->lock.
  */
 int
 isdn_get_free_channel(int usage, int l2_proto, int l3_proto, int pre_dev
-		      ,int pre_chan, char *msn)
+		      , int pre_chan, char *msn)
 {
 	int i;
 	ulong features;
@@ -1883,7 +1883,7 @@ isdn_get_free_channel(int usage, int l2_proto, int l3_proto, int pre_dev
 
 	features = ((1 << l2_proto) | (0x10000 << l3_proto));
 	vfeatures = (((1 << l2_proto) | (0x10000 << l3_proto)) &
-		     ~(ISDN_FEATURE_L2_V11096|ISDN_FEATURE_L2_V11019|ISDN_FEATURE_L2_V11038));
+		     ~(ISDN_FEATURE_L2_V11096 | ISDN_FEATURE_L2_V11019 | ISDN_FEATURE_L2_V11038));
 	/* If Layer-2 protocol is V.110, accept drivers with
 	 * transparent feature even if these don't support V.110
 	 * because we can emulate this in linklevel.
@@ -1893,12 +1893,12 @@ isdn_get_free_channel(int usage, int l2_proto, int l3_proto, int pre_dev
 		    (dev->drvmap[i] != -1)) {
 			int d = dev->drvmap[i];
 			if ((dev->usage[i] & ISDN_USAGE_EXCLUSIVE) &&
-			((pre_dev != d) || (pre_chan != dev->chanmap[i])))
+			    ((pre_dev != d) || (pre_chan != dev->chanmap[i])))
 				continue;
 			if (!strcmp(isdn_map_eaz2msn(msn, d), "-"))
 				continue;
 			if (dev->usage[i] & ISDN_USAGE_DISABLED)
-			        continue; /* usage not allowed */
+				continue; /* usage not allowed */
 			if (dev->drv[d]->flags & DRV_FLAG_RUNNING) {
 				if (((dev->drv[d]->interface->features & features) == features) ||
 				    (((dev->drv[d]->interface->features & vfeatures) == vfeatures) &&
@@ -1932,7 +1932,7 @@ isdn_free_channel(int di, int ch, int usage)
 
 	if ((di < 0) || (ch < 0)) {
 		printk(KERN_WARNING "%s: called with invalid drv(%d) or channel(%d)\n",
-			__func__, di, ch);
+		       __func__, di, ch);
 		return;
 	}
 	for (i = 0; i < ISDN_MAX_CHANNELS; i++)
@@ -1976,7 +1976,7 @@ isdn_unexclusive_channel(int di, int ch)
  *  writebuf replacement for SKB_ABLE drivers
  */
 static int
-isdn_writebuf_stub(int drvidx, int chan, const u_char __user * buf, int len)
+isdn_writebuf_stub(int drvidx, int chan, const u_char __user *buf, int len)
 {
 	int ret;
 	int hl = dev->drv[drvidx]->interface->hl_hdrlen;
@@ -2026,8 +2026,8 @@ isdn_writebuf_skb_stub(int drvidx, int chan, int ack, struct sk_buff *skb)
 	} else {
 		int hl = dev->drv[drvidx]->interface->hl_hdrlen;
 
-		if( skb_headroom(skb) < hl ){
-			/* 
+		if (skb_headroom(skb) < hl) {
+			/*
 			 * This should only occur when new HL driver with
 			 * increased hl_hdrlen was loaded after netdevice
 			 * was created and connected to the new driver.
@@ -2035,13 +2035,13 @@ isdn_writebuf_skb_stub(int drvidx, int chan, int ack, struct sk_buff *skb)
 			 * The V.110 branch (re-allocates on its own) does
 			 * not need this
 			 */
-			struct sk_buff * skb_tmp;
+			struct sk_buff *skb_tmp;
 
 			skb_tmp = skb_realloc_headroom(skb, hl);
 			printk(KERN_DEBUG "isdn_writebuf_skb_stub: reallocating headroom%s\n", skb_tmp ? "" : " failed");
 			if (!skb_tmp) return -ENOMEM; /* 0 better? */
 			ret = dev->drv[drvidx]->interface->writebuf_skb(drvidx, chan, ack, skb_tmp);
-			if( ret > 0 ){
+			if (ret > 0) {
 				dev_kfree_skb(skb);
 			} else {
 				dev_kfree_skb(skb_tmp);
@@ -2059,7 +2059,7 @@ isdn_writebuf_skb_stub(int drvidx, int chan, int ack, struct sk_buff *skb)
 			/* For V.110 return unencoded data length */
 			ret = v110_ret;
 			/* if the complete frame was send we free the skb;
-			   if not upper function will requeue the skb */ 
+			   if not upper function will requeue the skb */
 			if (ret == skb->len)
 				dev_kfree_skb(skb);
 		}
@@ -2077,7 +2077,7 @@ isdn_add_channels(isdn_driver_t *d, int drvidx, int n, int adding)
 	init_waitqueue_head(&d->st_waitq);
 	if (d->flags & DRV_FLAG_RUNNING)
 		return -1;
-       	if (n < 1) return 0;
+	if (n < 1) return 0;
 
 	m = (adding) ? d->channels + n : n;
 
@@ -2114,7 +2114,7 @@ isdn_add_channels(isdn_driver_t *d, int drvidx, int n, int adding)
 			kfree(d->rcvcount);
 			kfree(d->rcverr);
 		}
-		return -1; 
+		return -1;
 	}
 	for (j = 0; j < m; j++) {
 		skb_queue_head_init(&d->rpqueue[j]);
@@ -2172,45 +2172,45 @@ set_global_features(void)
 
 static char *map_drvname(int di)
 {
-  if ((di < 0) || (di >= ISDN_MAX_DRIVERS)) 
-    return(NULL);
-  return(dev->drvid[di]); /* driver name */
+	if ((di < 0) || (di >= ISDN_MAX_DRIVERS))
+		return (NULL);
+	return (dev->drvid[di]); /* driver name */
 } /* map_drvname */
 
 static int map_namedrv(char *id)
 {  int i;
 
-   for (i = 0; i < ISDN_MAX_DRIVERS; i++)
-    { if (!strcmp(dev->drvid[i],id)) 
-        return(i);
-    }
-   return(-1);
+	for (i = 0; i < ISDN_MAX_DRIVERS; i++)
+	{ if (!strcmp(dev->drvid[i], id))
+			return (i);
+	}
+	return (-1);
 } /* map_namedrv */
 
 int DIVERT_REG_NAME(isdn_divert_if *i_div)
 {
-  if (i_div->if_magic != DIVERT_IF_MAGIC) 
-    return(DIVERT_VER_ERR);
-  switch (i_div->cmd)
-    {
-      case DIVERT_CMD_REL:
-        if (divert_if != i_div) 
-          return(DIVERT_REL_ERR);
-        divert_if = NULL; /* free interface */
-        return(DIVERT_NO_ERR);
-
-      case DIVERT_CMD_REG:
-        if (divert_if) 
-          return(DIVERT_REG_ERR);
-        i_div->ll_cmd = isdn_command; /* set command function */
-        i_div->drv_to_name = map_drvname; 
-        i_div->name_to_drv = map_namedrv; 
-        divert_if = i_div; /* remember interface */
-        return(DIVERT_NO_ERR);
-
-      default:
-        return(DIVERT_CMD_ERR);   
-    }
+	if (i_div->if_magic != DIVERT_IF_MAGIC)
+		return (DIVERT_VER_ERR);
+	switch (i_div->cmd)
+	{
+	case DIVERT_CMD_REL:
+		if (divert_if != i_div)
+			return (DIVERT_REL_ERR);
+		divert_if = NULL; /* free interface */
+		return (DIVERT_NO_ERR);
+
+	case DIVERT_CMD_REG:
+		if (divert_if)
+			return (DIVERT_REG_ERR);
+		i_div->ll_cmd = isdn_command; /* set command function */
+		i_div->drv_to_name = map_drvname;
+		i_div->name_to_drv = map_namedrv;
+		divert_if = i_div; /* remember interface */
+		return (DIVERT_NO_ERR);
+
+	default:
+		return (DIVERT_CMD_ERR);
+	}
 } /* DIVERT_REG_NAME */
 
 EXPORT_SYMBOL(DIVERT_REG_NAME);
@@ -2225,7 +2225,7 @@ EXPORT_SYMBOL(isdn_ppp_unregister_compressor);
 #endif
 
 int
-register_isdn(isdn_if * i)
+register_isdn(isdn_if *i)
 {
 	isdn_driver_t *d;
 	int j;
@@ -2280,10 +2280,10 @@ register_isdn(isdn_if * i)
 }
 
 /*
- *****************************************************************************
- * And now the modules code.
- *****************************************************************************
- */
+*****************************************************************************
+* And now the modules code.
+*****************************************************************************
+*/
 
 static char *
 isdn_getrev(const char *revision)