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/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index 8af3eb57f438..5c5d23e59da5 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -82,7 +82,7 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
                 if (nexthdr == NEXTHDR_NONE)
                         return -1;
                 hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
-                if (hp == NULL)
+                if (!hp)
                         return -1;
                 if (nexthdr == NEXTHDR_FRAGMENT) {
                         __be16 _frag_off, *fp;
@@ -91,7 +91,7 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
                                                                frag_off),
                                                 sizeof(_frag_off),
                                                 &_frag_off);
-                        if (fp == NULL)
+                        if (!fp)
                                 return -1;
 
                         *frag_offp = *fp;
@@ -218,7 +218,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
                 }
 
                 hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
-                if (hp == NULL)
+                if (!hp)
                         return -EBADMSG;
 
                 if (nexthdr == NEXTHDR_ROUTING) {
@@ -226,7 +226,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
 
                         rh = skb_header_pointer(skb, start, sizeof(_rh),
                                                 &_rh);
-                        if (rh == NULL)
+                        if (!rh)
                                 return -EBADMSG;
 
                         if (flags && (*flags & IP6_FH_F_SKIP_RH) &&
@@ -245,7 +245,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
                                                                frag_off),
                                                 sizeof(_frag_off),
                                                 &_frag_off);
-                        if (fp == NULL)
+                        if (!fp)
                                 return -EBADMSG;
 
                         _frag_off = ntohs(*fp) & ~0x7;