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[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2

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Here are some possible (and trivial) cleanups.
- use kzalloc() where possible
- invert allocation failure test like
  if (object) {
        /* Rest of function here */
  }
  to

  if (object == NULL)
        return NULL;

  /* Rest of function here */

Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ingo Oeser 2006-03-20 23:01:47 -08:00 committed by David S. Miller
parent 0c600eda4b
commit 322f74a432
1 changed files with 71 additions and 74 deletions
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13
net/ipv6/addrconf.c
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@ -341,10 +341,10 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
if (dev->mtu < IPV6_MIN_MTU)
return NULL;
ndev = kmalloc(sizeof(struct inet6_dev), GFP_KERNEL);
ndev = kzalloc(sizeof(struct inet6_dev), GFP_KERNEL);
if (ndev) {
memset(ndev, 0, sizeof(struct inet6_dev));
if (ndev == NULL)
return NULL;
rwlock_init(&ndev->lock);
ndev->dev = dev;
@ -418,7 +418,6 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
NULL);
addrconf_sysctl_register(ndev, &ndev->cnf);
#endif
}
return ndev;
}
@ -536,7 +535,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
goto out;
}
ifa = kmalloc(sizeof(struct inet6_ifaddr), GFP_ATOMIC);
ifa = kzalloc(sizeof(struct inet6_ifaddr), GFP_ATOMIC);
if (ifa == NULL) {
ADBG(("ipv6_add_addr: malloc failed\n"));
@ -550,7 +549,6 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
goto out;
}
memset(ifa, 0, sizeof(struct inet6_ifaddr));
ipv6_addr_copy(&ifa->addr, addr);
spin_lock_init(&ifa->lock);
@ -2669,11 +2667,10 @@ static int if6_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct if6_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
struct if6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
memset(s, 0, sizeof(*s));
rc = seq_open(file, &if6_seq_ops);
if (rc)