ipv4: coding style: comparison for equality with NULL

The ipv4 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, 3 insertions, 3 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 294af16633af..9f525a2a68df 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -633,7 +633,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable)
 
         sk = __udp4_lib_lookup(net, iph->daddr, uh->dest,
                         iph->saddr, uh->source, skb->dev->ifindex, udptable);
-        if (sk == NULL) {
+        if (!sk) {
                 ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
                 return; /* No socket for error */
         }
@@ -1011,7 +1011,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
         if (connected)
                 rt = (struct rtable *)sk_dst_check(sk, 0);
 
-        if (rt == NULL) {
+        if (!rt) {
                 struct net *net = sock_net(sk);
 
                 fl4 = &fl4_stack;
@@ -1619,7 +1619,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 
         for (i = 0; i < count; i++) {
                 sk = stack[i];
-                if (likely(skb1 == NULL))
+                if (likely(!skb1))
                         skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
 
                 if (!skb1) {