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ipv4: coding style: comparison for equality with NULL

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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>
This commit is contained in:
Ian Morris
2015-04-03 09:17:26 +01:00
committed by David S. Miller
parent 11a9c7821c
commit 51456b2914
39 changed files with 210 additions and 202 deletions
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8
net/ipv4/ip_tunnel.c
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@@ -654,7 +654,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
if (dst == 0) {
/* NBMA tunnel */
if (skb_dst(skb) == NULL) {
if (!skb_dst(skb)) {
dev->stats.tx_fifo_errors++;
goto tx_error;
}
@@ -672,7 +672,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
neigh = dst_neigh_lookup(skb_dst(skb),
&ipv6_hdr(skb)->daddr);
if (neigh == NULL)
if (!neigh)
goto tx_error;
addr6 = (const struct in6_addr *)&neigh->primary_key;
@@ -843,7 +843,7 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
case SIOCGETTUNNEL:
if (dev == itn->fb_tunnel_dev) {
t = ip_tunnel_find(itn, p, itn->fb_tunnel_dev->type);
if (t == NULL)
if (!t)
t = netdev_priv(dev);
}
memcpy(p, &t->parms, sizeof(*p));
@@ -914,7 +914,7 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
if (dev == itn->fb_tunnel_dev) {
err = -ENOENT;
t = ip_tunnel_find(itn, p, itn->fb_tunnel_dev->type);
if (t == NULL)
if (!t)
goto done;
err = -EPERM;
if (t == netdev_priv(itn->fb_tunnel_dev))