ipv4: coding style: comparison for equality with NULL

[deliverable/linux.git] / net / ipv4 / fib_frontend.c

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 718b0a16ea409ef06fd889d397ff17657b7e1790..2166d2bf15624ed4e957b8ae0a9bb08d06d08ddd 100644 (file)
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -53,11 +53,11 @@ static int __net_init fib4_rules_init(struct net *net)
        struct fib_table *local_table, *main_table;
 
        main_table  = fib_trie_table(RT_TABLE_MAIN, NULL);
-       if (main_table == NULL)
+       if (!main_table)
                return -ENOMEM;
 
        local_table = fib_trie_table(RT_TABLE_LOCAL, main_table);
-       if (local_table == NULL)
+       if (!local_table)
                goto fail;
 
        hlist_add_head_rcu(&local_table->tb_hlist,
@@ -486,7 +486,7 @@ static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,
                        for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next)
                                if (strcmp(ifa->ifa_label, devname) == 0)
                                        break;
-                       if (ifa == NULL)
+                       if (!ifa)
                                return -ENODEV;
                        cfg->fc_prefsrc = ifa->ifa_local;
                }
@@ -514,7 +514,7 @@ static int rtentry_to_fib_config(struct net *net, int cmd, struct rtentry *rt,
                int len = 0;
 
                mx = kzalloc(3 * nla_total_size(4), GFP_KERNEL);
-               if (mx == NULL)
+               if (!mx)
                        return -ENOMEM;
 
                if (rt->rt_flags & RTF_MTU)
@@ -676,7 +676,7 @@ static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh)
                goto errout;
 
        tb = fib_get_table(net, cfg.fc_table);
-       if (tb == NULL) {
+       if (!tb) {
                err = -ESRCH;
                goto errout;
        }
@@ -698,7 +698,7 @@ static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh)
                goto errout;
 
        tb = fib_new_table(net, cfg.fc_table);
-       if (tb == NULL) {
+       if (!tb) {
                err = -ENOBUFS;
                goto errout;
        }
@@ -779,7 +779,7 @@ static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifad
        else
                tb = fib_new_table(net, RT_TABLE_LOCAL);
 
-       if (tb == NULL)
+       if (!tb)
                return;
 
        cfg.fc_table = tb->tb_id;
@@ -806,7 +806,7 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
 
        if (ifa->ifa_flags & IFA_F_SECONDARY) {
                prim = inet_ifa_byprefix(in_dev, prefix, mask);
-               if (prim == NULL) {
+               if (!prim) {
                        pr_warn("%s: bug: prim == NULL\n", __func__);
                        return;
                }
@@ -860,7 +860,7 @@ void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim)
 
        if (ifa->ifa_flags & IFA_F_SECONDARY) {
                prim = inet_ifa_byprefix(in_dev, any, ifa->ifa_mask);
-               if (prim == NULL) {
+               if (!prim) {
                        pr_warn("%s: bug: prim == NULL\n", __func__);
                        return;
                }
@@ -1030,7 +1030,7 @@ static void nl_fib_input(struct sk_buff *skb)
                return;
 
        skb = netlink_skb_clone(skb, GFP_KERNEL);
-       if (skb == NULL)
+       if (!skb)
                return;
        nlh = nlmsg_hdr(skb);
 
@@ -1051,7 +1051,7 @@ static int __net_init nl_fib_lookup_init(struct net *net)
        };
 
        sk = netlink_kernel_create(net, NETLINK_FIB_LOOKUP, &cfg);
-       if (sk == NULL)
+       if (!sk)
                return -EAFNOSUPPORT;
        net->ipv4.fibnl = sk;
        return 0;
@@ -1089,7 +1089,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
        case NETDEV_DOWN:
                fib_del_ifaddr(ifa, NULL);
                atomic_inc(&net->ipv4.dev_addr_genid);
-               if (ifa->ifa_dev->ifa_list == NULL) {
+               if (!ifa->ifa_dev->ifa_list) {
                        /* Last address was deleted from this interface.
                         * Disable IP.
                         */
@@ -1157,7 +1157,7 @@ static int __net_init ip_fib_net_init(struct net *net)
        size = max_t(size_t, size, L1_CACHE_BYTES);
 
        net->ipv4.fib_table_hash = kzalloc(size, GFP_KERNEL);
-       if (net->ipv4.fib_table_hash == NULL)
+       if (!net->ipv4.fib_table_hash)
                return -ENOMEM;
 
        err = fib4_rules_init(net);