ipv6: coding style: comparison for inequality 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, 4 insertions, 4 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index a8a74d36d893..7cdad8401434 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -460,7 +460,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst,
                                     &ireq->ir_v6_rmt_addr);
 
                 fl6->daddr = ireq->ir_v6_rmt_addr;
-                if (np->repflow && (ireq->pktopts != NULL))
+                if (np->repflow && ireq->pktopts)
                         fl6->flowlabel = ip6_flowlabel(ipv6_hdr(ireq->pktopts));
 
                 skb_set_queue_mapping(skb, queue_mapping);
@@ -1107,7 +1107,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
         /* Clone pktoptions received with SYN */
         newnp->pktoptions = NULL;
-        if (ireq->pktopts != NULL) {
+        if (ireq->pktopts) {
                 newnp->pktoptions = skb_clone(ireq->pktopts,
                                               sk_gfp_atomic(sk, GFP_ATOMIC));
                 consume_skb(ireq->pktopts);
@@ -1152,7 +1152,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 #ifdef CONFIG_TCP_MD5SIG
         /* Copy over the MD5 key from the original socket */
         key = tcp_v6_md5_do_lookup(sk, &newsk->sk_v6_daddr);
-        if (key != NULL) {
+        if (key) {
                 /* We're using one, so create a matching key
                  * on the newsk structure. If we fail to get
                  * memory, then we end up not copying the key
@@ -1475,7 +1475,7 @@ do_time_wait:
                                             &ipv6_hdr(skb)->saddr, th->source,
                                             &ipv6_hdr(skb)->daddr,
                                             ntohs(th->dest), tcp_v6_iif(skb));
-                if (sk2 != NULL) {
+                if (sk2) {
                         struct inet_timewait_sock *tw = inet_twsk(sk);
                         inet_twsk_deschedule(tw, &tcp_death_row);
                         inet_twsk_put(tw);