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, 8 insertions, 8 deletions

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 457303886fd4..3f54ac5f05b8 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -205,7 +205,7 @@ static struct ip6_flowlabel *fl_intern(struct net *net,
                         fl->label = htonl(prandom_u32())&IPV6_FLOWLABEL_MASK;
                         if (fl->label) {
                                 lfl = __fl_lookup(net, fl->label);
-                                if (lfl == NULL)
+                                if (!lfl)
                                         break;
                         }
                 }
@@ -297,7 +297,7 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
 {
         struct ipv6_txoptions *fl_opt = fl->opt;
 
-        if (fopt == NULL || fopt->opt_flen == 0)
+        if (!fopt || fopt->opt_flen == 0)
                 return fl_opt;
 
         if (fl_opt != NULL) {
@@ -366,7 +366,7 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq,
 
         err = -ENOMEM;
         fl = kzalloc(sizeof(*fl), GFP_KERNEL);
-        if (fl == NULL)
+        if (!fl)
                 goto done;
 
         if (olen > 0) {
@@ -376,7 +376,7 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq,
 
                 err = -ENOMEM;
                 fl->opt = kmalloc(sizeof(*fl->opt) + olen, GFP_KERNEL);
-                if (fl->opt == NULL)
+                if (!fl->opt)
                         goto done;
 
                 memset(fl->opt, 0, sizeof(*fl->opt));
@@ -596,7 +596,7 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
                         return -EINVAL;
 
                 fl = fl_create(net, sk, &freq, optval, optlen, &err);
-                if (fl == NULL)
+                if (!fl)
                         return err;
                 sfl1 = kmalloc(sizeof(*sfl1), GFP_KERNEL);
 
@@ -616,7 +616,7 @@ int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
                         }
                         rcu_read_unlock_bh();
 
-                        if (fl1 == NULL)
+                        if (!fl1)
                                 fl1 = fl_lookup(net, freq.flr_label);
                         if (fl1) {
 recheck:
@@ -633,7 +633,7 @@ recheck:
                                         goto release;
 
                                 err = -ENOMEM;
-                                if (sfl1 == NULL)
+                                if (!sfl1)
                                         goto release;
                                 if (fl->linger > fl1->linger)
                                         fl1->linger = fl->linger;
@@ -653,7 +653,7 @@ release:
                         goto done;
 
                 err = -ENOMEM;
-                if (sfl1 == NULL)
+                if (!sfl1)
                         goto done;
 
                 err = mem_check(sk);