ipv4: coding style: comparison for equality with NULL

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

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 652b92ebd7badd3433282b96122da685d3f24eb1..26a1cb348b3daa42df611ba597c498dba234a4ff 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1056,7 +1056,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
        __build_flow_key(&fl4, sk, iph, 0, 0, 0, 0, 0);
 
        rt = (struct rtable *)odst;
-       if (odst->obsolete && odst->ops->check(odst, 0) == NULL) {
+       if (odst->obsolete && !odst->ops->check(odst, 0)) {
                rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
                if (IS_ERR(rt))
                        goto out;
@@ -1450,7 +1450,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
        /* Primary sanity checks. */
 
-       if (in_dev == NULL)
+       if (!in_dev)
                return -EINVAL;
 
        if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
@@ -1553,7 +1553,7 @@ static int __mkroute_input(struct sk_buff *skb,
 
        /* get a working reference to the output device */
        out_dev = __in_dev_get_rcu(FIB_RES_DEV(*res));
-       if (out_dev == NULL) {
+       if (!out_dev) {
                net_crit_ratelimited("Bug in ip_route_input_slow(). Please report.\n");
                return -EINVAL;
        }
@@ -2054,7 +2054,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
                     ipv4_is_lbcast(fl4->daddr))) {
                        /* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
                        dev_out = __ip_dev_find(net, fl4->saddr, false);
-                       if (dev_out == NULL)
+                       if (!dev_out)
                                goto out;
 
                        /* Special hack: user can direct multicasts
@@ -2087,7 +2087,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
        if (fl4->flowi4_oif) {
                dev_out = dev_get_by_index_rcu(net, fl4->flowi4_oif);
                rth = ERR_PTR(-ENODEV);
-               if (dev_out == NULL)
+               if (!dev_out)
                        goto out;
 
                /* RACE: Check return value of inet_select_addr instead. */
@@ -2299,7 +2299,7 @@ static int rt_fill_info(struct net *net,  __be32 dst, __be32 src,
        u32 metrics[RTAX_MAX];
 
        nlh = nlmsg_put(skb, portid, seq, event, sizeof(*r), flags);
-       if (nlh == NULL)
+       if (!nlh)
                return -EMSGSIZE;
 
        r = nlmsg_data(nlh);
@@ -2421,7 +2421,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
        rtm = nlmsg_data(nlh);
 
        skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
-       if (skb == NULL) {
+       if (!skb) {
                err = -ENOBUFS;
                goto errout;
        }
@@ -2452,7 +2452,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
                struct net_device *dev;
 
                dev = __dev_get_by_index(net, iif);
-               if (dev == NULL) {
+               if (!dev) {
                        err = -ENODEV;
                        goto errout_free;
                }
@@ -2651,7 +2651,7 @@ static __net_init int sysctl_route_net_init(struct net *net)
        tbl = ipv4_route_flush_table;
        if (!net_eq(net, &init_net)) {
                tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
-               if (tbl == NULL)
+               if (!tbl)
                        goto err_dup;
 
                /* Don't export sysctls to unprivileged users */
@@ -2661,7 +2661,7 @@ static __net_init int sysctl_route_net_init(struct net *net)
        tbl[0].extra1 = net;
 
        net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
-       if (net->ipv4.route_hdr == NULL)
+       if (!net->ipv4.route_hdr)
                goto err_reg;
        return 0;