ipv6: coding style: comparison for equality with NULL

The ipv6 code uses a mixture of coding styles. In some instances check for NULL
pointer is done as x == NULL and sometimes as !x. !x is preferred according to
checkpatch and this patch makes the code consistent by adopting the latter
form.

No changes detected by objdiff.

Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a5287b3582a4..e33576df4658 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -172,7 +172,7 @@ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
         read_lock(&raw_v6_hashinfo.lock);
         sk = sk_head(&raw_v6_hashinfo.ht[hash]);
 
-        if (sk == NULL)
+        if (!sk)
                 goto out;
 
         net = dev_net(skb->dev);
@@ -630,7 +630,7 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
         skb = sock_alloc_send_skb(sk,
                                   length + hlen + tlen + 15,
                                   flags & MSG_DONTWAIT, &err);
-        if (skb == NULL)
+        if (!skb)
                 goto error;
         skb_reserve(skb, hlen);
 
@@ -789,7 +789,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
                         fl6.flowlabel = sin6->sin6_flowinfo&IPV6_FLOWINFO_MASK;
                         if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
                                 flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
-                                if (flowlabel == NULL)
+                                if (!flowlabel)
                                         return -EINVAL;
                         }
                 }
@@ -831,13 +831,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
                 }
                 if ((fl6.flowlabel&IPV6_FLOWLABEL_MASK) && !flowlabel) {
                         flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
-                        if (flowlabel == NULL)
+                        if (!flowlabel)
                                 return -EINVAL;
                 }
                 if (!(opt->opt_nflen|opt->opt_flen))
                         opt = NULL;
         }
-        if (opt == NULL)
+        if (!opt)
                 opt = np->opt;
         if (flowlabel)
                 opt = fl6_merge_options(&opt_space, flowlabel, opt);