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[NETROM]: Remove unessecary lock_sock calls in netrom_ioctl() 

lock_sock is needed only in very few cases, so do it there instead of
around the switch statement.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2006-01-03 14:14:46 -08:00 committed by David S. Miller
parent b461d2f218
commit 5ff7630e4a
1 changed files with 5 additions and 5 deletions
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10
net/netrom/af_netrom.c
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@ -1166,10 +1166,11 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
void __user *argp = (void __user *)arg;
int ret;
lock_sock(sk);
switch (cmd) {
case TIOCOUTQ: {
long amount;
lock_sock(sk);
amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc);
if (amount < 0)
amount = 0;
@ -1180,6 +1181,8 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
case TIOCINQ: {
struct sk_buff *skb;
long amount = 0L;
lock_sock(sk);
/* These two are safe on a single CPU system as only user tasks fiddle here */
if ((skb = skb_peek(&sk->sk_receive_queue)) != NULL)
amount = skb->len;
@ -1188,6 +1191,7 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
}
case SIOCGSTAMP:
lock_sock(sk);
ret = sock_get_timestamp(sk, argp);
release_sock(sk);
return ret;
@ -1202,21 +1206,17 @@ static int nr_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
case SIOCSIFNETMASK:
case SIOCGIFMETRIC:
case SIOCSIFMETRIC:
release_sock(sk);
return -EINVAL;
case SIOCADDRT:
case SIOCDELRT:
case SIOCNRDECOBS:
release_sock(sk);
if (!capable(CAP_NET_ADMIN)) return -EPERM;
return nr_rt_ioctl(cmd, argp);
default:
release_sock(sk);
return dev_ioctl(cmd, argp);
}
release_sock(sk);
return 0;
}