[PATCH] sparse: net/* NULL noise removal

include/linux/netdevice.h

@@ -565,7 +565,7 @@ typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int le
 extern int		register_gifconf(unsigned int family, gifconf_func_t * gifconf);
 static inline int unregister_gifconf(unsigned int family)
 {
-	return register_gifconf(family, 0);
+	return register_gifconf(family, NULL);
 }
 
 /*

net/atm/clip.c

@@ -998,7 +998,7 @@ static int __init atm_clip_init(void)
 
 	/* so neigh_ifdown() doesn't complain */
 	clip_tbl.proxy_timer.data = 0;
-	clip_tbl.proxy_timer.function = 0;
+	clip_tbl.proxy_timer.function = NULL;
 	init_timer(&clip_tbl.proxy_timer);
 	skb_queue_head_init(&clip_tbl.proxy_queue);
 

net/atm/signaling.c

@@ -135,7 +135,7 @@ static int sigd_send(struct atm_vcc *vcc,struct sk_buff *skb)
 			lock_sock(vcc->sk);
 			if (vcc->sk->sk_ack_backlog ==
 			    vcc->sk->sk_max_ack_backlog) {
-				sigd_enq(0,as_reject,vcc,NULL,NULL);
+				sigd_enq(NULL,as_reject,vcc,NULL,NULL);
 				goto as_indicate_complete;
 			}
 			vcc->sk->sk_ack_backlog++;

net/bluetooth/af_bluetooth.c

@@ -354,7 +354,7 @@ static int __init bt_init(void)
 	/* Init socket cache */
 	bt_sock_cache = kmem_cache_create("bt_sock",
 			sizeof(struct bt_sock), 0,
-			SLAB_HWCACHE_ALIGN, 0, 0);
+			SLAB_HWCACHE_ALIGN, NULL, NULL);
 
 	if (!bt_sock_cache) {
 		BT_ERR("Socket cache creation failed");

net/bluetooth/hci_sysfs.c

@@ -91,7 +91,7 @@ static int bt_hotplug(struct class_device *cdev, char **envp, int num_envp, char
 	if ((size <= 0) || (i >= num_envp))
 		return -ENOMEM;
 
-	envp[i] = 0;
+	envp[i] = NULL;
 	return 0;
 }
 #endif

net/core/pktgen.c

@@ -1355,7 +1355,7 @@ static int __init init(void)
 		pginfos[i].udp_dst_max = 9;
 		
 		sprintf(pginfos[i].fname, "net/%s/pg%i", PG_PROC_DIR, i);
-		pginfos[i].proc_ent = create_proc_entry(pginfos[i].fname, 0600, 0);
+		pginfos[i].proc_ent = create_proc_entry(pginfos[i].fname, 0600, NULL);
 		if (!pginfos[i].proc_ent) {
 			printk("pktgen: Error: cannot create net/%s/pg procfs entry.\n", PG_PROC_DIR);
 			goto cleanup_mem;
@@ -1366,7 +1366,7 @@ static int __init init(void)
 		pginfos[i].proc_ent->owner = THIS_MODULE;
 
 		sprintf(pginfos[i].busy_fname, "net/%s/pg_busy%i",  PG_PROC_DIR, i);
-		pginfos[i].busy_proc_ent = create_proc_entry(pginfos[i].busy_fname, 0, 0);
+		pginfos[i].busy_proc_ent = create_proc_entry(pginfos[i].busy_fname, 0, NULL);
 		if (!pginfos[i].busy_proc_ent) {
 			printk("pktgen: Error: cannot create net/%s/pg_busy procfs entry.\n", PG_PROC_DIR);
 			goto cleanup_mem;

net/econet/af_econet.c

@@ -1091,7 +1091,7 @@ static int econet_notifier(struct notifier_block *this, unsigned long msg, void
 		if (edev)
 		{
 			if (net2dev_map[0] == dev)
-				net2dev_map[0] = 0;
+				net2dev_map[0] = NULL;
 			net2dev_map[edev->net] = NULL;
 			kfree(edev);
 			dev->ec_ptr = NULL;

net/ipv4/ipvs/ip_vs_sync.c

@@ -593,7 +593,7 @@ ip_vs_receive(struct socket *sock, char *buffer, const size_t buflen)
 	/* Receive a packet */
 	iov.iov_base     = buffer;
 	iov.iov_len      = (size_t)buflen;
-	msg.msg_name     = 0;
+	msg.msg_name     = NULL;
 	msg.msg_namelen  = 0;
 	msg.msg_iov	 = &iov;
 	msg.msg_iovlen   = 1;

net/ipv4/ipvs/ip_vs_xmit.c

@@ -51,7 +51,7 @@ __ip_vs_dst_check(struct ip_vs_dest *dest, u32 rtos, u32 cookie)
 		return NULL;
 	if ((dst->obsolete || rtos != dest->dst_rtos) &&
 	    dst->ops->check(dst, cookie) == NULL) {
-		dest->dst_cache = 0;
+		dest->dst_cache = NULL;
 		return NULL;
 	}
 	dst_hold(dst);

net/ipv4/netfilter/ip_nat_snmp_basic.c

@@ -252,7 +252,7 @@ static unsigned char asn1_header_decode(struct asn1_ctx *ctx,
 	if (def)
 		*eoc = ctx->pointer + len;
 	else
-		*eoc = 0;
+		*eoc = NULL;
 	return 1;
 }
 

net/ipv6/addrconf.c

@@ -696,7 +696,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
 	ift = !max_addresses ||
 	      ipv6_count_addresses(idev) < max_addresses ? 
 		ipv6_add_addr(idev, &addr, tmp_plen,
-			      ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK, IFA_F_TEMPORARY) : 0;
+			      ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK, IFA_F_TEMPORARY) : NULL;
 	if (!ift || IS_ERR(ift)) {
 		in6_dev_put(idev);
 		in6_ifa_put(ifp);

net/ipv6/af_inet6.c

@@ -719,13 +719,13 @@ static int __init inet6_init(void)
 	/* allocate our sock slab caches */
         tcp6_sk_cachep = kmem_cache_create("tcp6_sock",
 					   sizeof(struct tcp6_sock), 0,
-                                           SLAB_HWCACHE_ALIGN, 0, 0);
+                                           SLAB_HWCACHE_ALIGN, NULL, NULL);
         udp6_sk_cachep = kmem_cache_create("udp6_sock",
 					   sizeof(struct udp6_sock), 0,
-                                           SLAB_HWCACHE_ALIGN, 0, 0);
+                                           SLAB_HWCACHE_ALIGN, NULL, NULL);
         raw6_sk_cachep = kmem_cache_create("raw6_sock",
 					   sizeof(struct raw6_sock), 0,
-                                           SLAB_HWCACHE_ALIGN, 0, 0);
+                                           SLAB_HWCACHE_ALIGN, NULL, NULL);
         if (!tcp6_sk_cachep || !udp6_sk_cachep || !raw6_sk_cachep)
                 printk(KERN_CRIT "%s: Can't create protocol sock SLAB "
 		       "caches!\n", __FUNCTION__);

net/ipv6/anycast.c

@@ -202,7 +202,7 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
 	struct ipv6_ac_socklist *pac, *prev_pac;
 
 	write_lock_bh(&ipv6_sk_ac_lock);
-	prev_pac = 0;
+	prev_pac = NULL;
 	for (pac = np->ipv6_ac_list; pac; pac = pac->acl_next) {
 		if ((ifindex == 0 || pac->acl_ifindex == ifindex) &&
 		     ipv6_addr_cmp(&pac->acl_addr, addr) == 0)
@@ -232,13 +232,13 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
 void ipv6_sock_ac_close(struct sock *sk)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
-	struct net_device *dev = 0;
+	struct net_device *dev = NULL;
 	struct ipv6_ac_socklist *pac;
 	int	prev_index;
 
 	write_lock_bh(&ipv6_sk_ac_lock);
 	pac = np->ipv6_ac_list;
-	np->ipv6_ac_list = 0;
+	np->ipv6_ac_list = NULL;
 	write_unlock_bh(&ipv6_sk_ac_lock);
 
 	prev_index = 0;
@@ -373,7 +373,7 @@ int ipv6_dev_ac_dec(struct net_device *dev, struct in6_addr *addr)
 		return -ENODEV;
 
 	write_lock_bh(&idev->lock);
-	prev_aca = 0;
+	prev_aca = NULL;
 	for (aca = idev->ac_list; aca; aca = aca->aca_next) {
 		if (ipv6_addr_cmp(&aca->aca_addr, addr) == 0)
 			break;

net/ipv6/ip6_output.c

@@ -561,7 +561,7 @@ static int ip6_fragment(struct sk_buff **pskb, int (*output)(struct sk_buff**))
 		err = 0;
 		offset = 0;
 		frag = skb_shinfo(skb)->frag_list;
-		skb_shinfo(skb)->frag_list = 0;
+		skb_shinfo(skb)->frag_list = NULL;
 		/* BUILD HEADER */
 
 		tmp_hdr = kmalloc(hlen, GFP_ATOMIC);

net/ipv6/mcast.c

@@ -210,7 +210,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
 
 	mc_lst->ifindex = dev->ifindex;
 	mc_lst->sfmode = MCAST_EXCLUDE;
-	mc_lst->sflist = 0;
+	mc_lst->sflist = NULL;
 
 	/*
 	 *	now add/increase the group membership on the device
@@ -272,8 +272,8 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
 
 struct inet6_dev *ip6_mc_find_dev(struct in6_addr *group, int ifindex)
 {
-	struct net_device *dev = 0;
-	struct inet6_dev *idev = 0;
+	struct net_device *dev = NULL;
+	struct inet6_dev *idev = NULL;
 
 	if (ifindex == 0) {
 		struct rt6_info *rt;
@@ -288,18 +288,18 @@ struct inet6_dev *ip6_mc_find_dev(struct in6_addr *group, int ifindex)
 		dev = dev_get_by_index(ifindex);
 
 	if (!dev)
-		return 0;
+		return NULL;
 	idev = in6_dev_get(dev);
 	if (!idev) {
 		dev_put(dev);
-		return 0;
+		return NULL;
 	}
 	read_lock_bh(&idev->lock);
 	if (idev->dead) {
 		read_unlock_bh(&idev->lock);
 		in6_dev_put(idev);
 		dev_put(dev);
-		return 0;
+		return NULL;
 	}
 	return idev;
 }
@@ -378,8 +378,8 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 			goto done;
 	} else if (pmc->sfmode != omode) {
 		/* allow mode switches for empty-set filters */
-		ip6_mc_add_src(idev, group, omode, 0, 0, 0);
-		ip6_mc_del_src(idev, group, pmc->sfmode, 0, 0, 0);
+		ip6_mc_add_src(idev, group, omode, 0, NULL, 0);
+		ip6_mc_del_src(idev, group, pmc->sfmode, 0, NULL, 0);
 		pmc->sfmode = omode;
 	}
 
@@ -509,14 +509,14 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
 			goto done;
 		}
 	} else
-		newpsl = 0;
+		newpsl = NULL;
 	psl = pmc->sflist;
 	if (psl) {
 		(void) ip6_mc_del_src(idev, group, pmc->sfmode,
 			psl->sl_count, psl->sl_addr, 0);
 		sock_kfree_s(sk, psl, IP6_SFLSIZE(psl->sl_max));
 	} else
-		(void) ip6_mc_del_src(idev, group, pmc->sfmode, 0, 0, 0);
+		(void) ip6_mc_del_src(idev, group, pmc->sfmode, 0, NULL, 0);
 	pmc->sflist = newpsl;
 	pmc->sfmode = gsf->gf_fmode;
 done:
@@ -718,7 +718,7 @@ static void mld_add_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im)
 
 		pmc->mca_tomb = im->mca_tomb;
 		pmc->mca_sources = im->mca_sources;
-		im->mca_tomb = im->mca_sources = 0;
+		im->mca_tomb = im->mca_sources = NULL;
 		for (psf=pmc->mca_sources; psf; psf=psf->sf_next)
 			psf->sf_crcount = pmc->mca_crcount;
 	}
@@ -736,7 +736,7 @@ static void mld_del_delrec(struct inet6_dev *idev, struct in6_addr *pmca)
 	struct ip6_sf_list *psf, *psf_next;
 
 	write_lock_bh(&idev->mc_lock);
-	pmc_prev = 0;
+	pmc_prev = NULL;
 	for (pmc=idev->mc_tomb; pmc; pmc=pmc->next) {
 		if (ipv6_addr_cmp(&pmc->mca_addr, pmca) == 0)
 			break;
@@ -765,7 +765,7 @@ static void mld_clear_delrec(struct inet6_dev *idev)
 
 	write_lock_bh(&idev->mc_lock);
 	pmc = idev->mc_tomb;
-	idev->mc_tomb = 0;
+	idev->mc_tomb = NULL;
 	write_unlock_bh(&idev->mc_lock);
 
 	for (; pmc; pmc = nextpmc) {
@@ -782,7 +782,7 @@ static void mld_clear_delrec(struct inet6_dev *idev)
 
 		spin_lock_bh(&pmc->mca_lock);
 		psf = pmc->mca_tomb;
-		pmc->mca_tomb = 0;
+		pmc->mca_tomb = NULL;
 		spin_unlock_bh(&pmc->mca_lock);
 		for (; psf; psf=psf_next) {
 			psf_next = psf->sf_next;
@@ -818,7 +818,7 @@ int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr)
 			mc->mca_users++;
 			write_unlock_bh(&idev->lock);
 			ip6_mc_add_src(idev, &mc->mca_addr, MCAST_EXCLUDE, 0,
-				0, 0);
+				NULL, 0);
 			in6_dev_put(idev);
 			return 0;
 		}
@@ -1274,7 +1274,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 	skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
 
 	if (skb == 0)
-		return 0;
+		return NULL;
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
 	if (dev->hard_header) {
@@ -1283,7 +1283,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 		ndisc_mc_map(&mld2_all_mcr, ha, dev, 1);
 		if (dev->hard_header(skb, dev, ETH_P_IPV6,ha,NULL,size) < 0) {
 			kfree_skb(skb);
-			return 0;
+			return NULL;
 		}
 	}
 
@@ -1352,7 +1352,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 	if (!skb)
 		skb = mld_newpack(dev, dev->mtu);
 	if (!skb)
-		return 0;
+		return NULL;
 	pgr = (struct mld2_grec *)skb_put(skb, sizeof(struct mld2_grec));
 	pgr->grec_type = type;
 	pgr->grec_auxwords = 0;
@@ -1372,7 +1372,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 {
 	struct net_device *dev = pmc->idev->dev;
 	struct mld2_report *pmr;
-	struct mld2_grec *pgr = 0;
+	struct mld2_grec *pgr = NULL;
 	struct ip6_sf_list *psf, *psf_next, *psf_prev, **psf_list;
 	int scount, first, isquery, truncate;
 
@@ -1397,13 +1397,13 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 			if (skb && AVAILABLE(skb) < sizeof(struct mld2_grec)+
 			    sizeof(struct in6_addr)) {
 				mld_sendpack(skb);
-				skb = 0; /* add_grhead will get a new one */
+				skb = NULL; /* add_grhead will get a new one */
 			}
 			skb = add_grhead(skb, pmc, type, &pgr);
 		}
 		return skb;
 	}
-	pmr = skb ? (struct mld2_report *)skb->h.raw : 0;
+	pmr = skb ? (struct mld2_report *)skb->h.raw : NULL;
 
 	/* EX and TO_EX get a fresh packet, if needed */
 	if (truncate) {
@@ -1416,7 +1416,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 	}
 	first = 1;
 	scount = 0;
-	psf_prev = 0;
+	psf_prev = NULL;
 	for (psf=*psf_list; psf; psf=psf_next) {
 		struct in6_addr *psrc;
 
@@ -1474,7 +1474,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 
 static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc)
 {
-	struct sk_buff *skb = 0;
+	struct sk_buff *skb = NULL;
 	int type;
 
 	if (!pmc) {
@@ -1511,7 +1511,7 @@ static void mld_clear_zeros(struct ip6_sf_list **ppsf)
 {
 	struct ip6_sf_list *psf_prev, *psf_next, *psf;
 
-	psf_prev = 0;
+	psf_prev = NULL;
 	for (psf=*ppsf; psf; psf = psf_next) {
 		psf_next = psf->sf_next;
 		if (psf->sf_crcount == 0) {
@@ -1528,14 +1528,14 @@ static void mld_clear_zeros(struct ip6_sf_list **ppsf)
 static void mld_send_cr(struct inet6_dev *idev)
 {
 	struct ifmcaddr6 *pmc, *pmc_prev, *pmc_next;
-	struct sk_buff *skb = 0;
+	struct sk_buff *skb = NULL;
 	int type, dtype;
 
 	read_lock_bh(&idev->lock);
 	write_lock_bh(&idev->mc_lock);
 
 	/* deleted MCA's */
-	pmc_prev = 0;
+	pmc_prev = NULL;
 	for (pmc=idev->mc_tomb; pmc; pmc=pmc_next) {
 		pmc_next = pmc->next;
 		if (pmc->mca_sfmode == MCAST_INCLUDE) {
@@ -1691,7 +1691,7 @@ static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
 	struct ip6_sf_list *psf, *psf_prev;
 	int rv = 0;
 
-	psf_prev = 0;
+	psf_prev = NULL;
 	for (psf=pmc->mca_sources; psf; psf=psf->sf_next) {
 		if (ipv6_addr_cmp(&psf->sf_addr, psfsrc) == 0)
 			break;
@@ -1786,7 +1786,7 @@ static int ip6_mc_add1_src(struct ifmcaddr6 *pmc, int sfmode,
 {
 	struct ip6_sf_list *psf, *psf_prev;
 
-	psf_prev = 0;
+	psf_prev = NULL;
 	for (psf=pmc->mca_sources; psf; psf=psf->sf_next) {
 		if (ipv6_addr_cmp(&psf->sf_addr, psfsrc) == 0)
 			break;
@@ -1914,12 +1914,12 @@ static void ip6_mc_clear_src(struct ifmcaddr6 *pmc)
 		nextpsf = psf->sf_next;
 		kfree(psf);
 	}
-	pmc->mca_tomb = 0;
+	pmc->mca_tomb = NULL;
 	for (psf=pmc->mca_sources; psf; psf=nextpsf) {
 		nextpsf = psf->sf_next;
 		kfree(psf);
 	}
-	pmc->mca_sources = 0;
+	pmc->mca_sources = NULL;
 	pmc->mca_sfmode = MCAST_EXCLUDE;
 	pmc->mca_sfcount[MCAST_EXCLUDE] = 0;
 	pmc->mca_sfcount[MCAST_EXCLUDE] = 1;
@@ -1956,12 +1956,12 @@ int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
 
 	if (iml->sflist == 0) {
 		/* any-source empty exclude case */
-		return ip6_mc_del_src(idev, &iml->addr, iml->sfmode, 0, 0, 0);
+		return ip6_mc_del_src(idev, &iml->addr, iml->sfmode, 0, NULL, 0);
 	}
 	err = ip6_mc_del_src(idev, &iml->addr, iml->sfmode,
 		iml->sflist->sl_count, iml->sflist->sl_addr, 0);
 	sock_kfree_s(sk, iml->sflist, IP6_SFLSIZE(iml->sflist->sl_max));
-	iml->sflist = 0;
+	iml->sflist = NULL;
 	return err;
 }
 
@@ -1982,7 +1982,7 @@ static void mld_gq_timer_expire(unsigned long data)
 	struct inet6_dev *idev = (struct inet6_dev *)data;
 
 	idev->mc_gq_running = 0;
-	mld_send_report(idev, 0);
+	mld_send_report(idev, NULL);
 	__in6_dev_put(idev);
 }
 
@@ -2074,7 +2074,7 @@ void ipv6_mc_init_dev(struct inet6_dev *idev)
 	init_timer(&idev->mc_gq_timer);
 	idev->mc_gq_timer.data = (unsigned long) idev;
 	idev->mc_gq_timer.function = &mld_gq_timer_expire;
-	idev->mc_tomb = 0;
+	idev->mc_tomb = NULL;
 	idev->mc_ifc_count = 0;
 	init_timer(&idev->mc_ifc_timer);
 	idev->mc_ifc_timer.data = (unsigned long) idev;

net/irda/ircomm/ircomm_tty.c

@@ -561,7 +561,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
 		tty->ldisc.flush_buffer(tty);
 
 	tty->closing = 0;
-	self->tty = 0;
+	self->tty = NULL;
 
 	if (self->blocked_open) {
 		if (self->close_delay) {
@@ -1045,7 +1045,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
 	/* I guess we need to lock here - Jean II */
 	spin_lock_irqsave(&self->spinlock, flags);
 	self->flags &= ~ASYNC_NORMAL_ACTIVE;
-	self->tty = 0;
+	self->tty = NULL;
 	self->open_count = 0;
 	spin_unlock_irqrestore(&self->spinlock, flags);
 

net/irda/irlmp.c

@@ -1491,7 +1491,7 @@ void *irlmp_register_service(__u16 hints)
 	service = kmalloc(sizeof(irlmp_service_t), GFP_ATOMIC);
 	if (!service) {
 		IRDA_DEBUG(1, "%s(), Unable to kmalloc!\n", __FUNCTION__);
-		return 0;
+		return NULL;
 	}
 	service->hints.word = hints;
 	hashbin_insert(irlmp->services, (irda_queue_t *) service,
@@ -1561,13 +1561,13 @@ void *irlmp_register_client(__u16 hint_mask, DISCOVERY_CALLBACK1 disco_clb,
 	irlmp_client_t *client;
 
 	IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
-	ASSERT(irlmp != NULL, return 0;);
+	ASSERT(irlmp != NULL, return NULL;);
 
 	/* Make a new registration */
 	client = kmalloc(sizeof(irlmp_client_t), GFP_ATOMIC);
 	if (!client) {
 		IRDA_DEBUG( 1, "%s(), Unable to kmalloc!\n", __FUNCTION__);
-		return 0;
+		return NULL;
 	}
 
 	/* Register the details */

net/sctp/protocol.c

@@ -134,7 +134,7 @@ void sctp_proc_exit(void)
 
 	if (proc_net_sctp) {
 		proc_net_sctp = NULL;
-		remove_proc_entry("net/sctp", 0);
+		remove_proc_entry("net/sctp", NULL);
 	}
 }