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svcrpc: clean up control flow 

Mainly, use the kernel standard

	err = -ERROR;
	if (something_bad)
		goto out;
	normal case;

rather than

	if (something_bad)
		err = -ERROR
	else {
		normal case;
	}

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2012-08-13 18:01:03 -04:00
parent 72c3537607
commit a8e10078a8
1 changed files with 34 additions and 35 deletions
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69
net/sunrpc/svcsock.c
View File

@ -1451,44 +1451,42 @@ int svc_addsock(struct svc_serv *serv, const int fd, char *name_return,
int err = 0;
struct socket *so = sockfd_lookup(fd, &err);
struct svc_sock *svsk = NULL;
struct sockaddr_storage addr;
struct sockaddr *sin = (struct sockaddr *)&addr;
int salen;
if (!so)
return err;
err = -EAFNOSUPPORT;
if ((so->sk->sk_family != PF_INET) && (so->sk->sk_family != PF_INET6))
err = -EAFNOSUPPORT;
else if (so->sk->sk_protocol != IPPROTO_TCP &&
goto out;
err = -EPROTONOSUPPORT;
if (so->sk->sk_protocol != IPPROTO_TCP &&
so->sk->sk_protocol != IPPROTO_UDP)
err = -EPROTONOSUPPORT;
else if (so->state > SS_UNCONNECTED)
err = -EISCONN;
else {
if (!try_module_get(THIS_MODULE))
err = -ENOENT;
else {
svsk = svc_setup_socket(serv, so, SVC_SOCK_DEFAULTS);
if (IS_ERR(svsk))
err = PTR_ERR(svsk);
}
if (err == 0) {
struct sockaddr_storage addr;
struct sockaddr *sin = (struct sockaddr *)&addr;
int salen;
if (kernel_getsockname(svsk->sk_sock, sin, &salen) == 0)
svc_xprt_set_local(&svsk->sk_xprt, sin, salen);
clear_bit(XPT_TEMP, &svsk->sk_xprt.xpt_flags);
spin_lock_bh(&serv->sv_lock);
list_add(&svsk->sk_xprt.xpt_list, &serv->sv_permsocks);
spin_unlock_bh(&serv->sv_lock);
svc_xprt_received(&svsk->sk_xprt);
err = 0;
} else
module_put(THIS_MODULE);
}
if (err) {
sockfd_put(so);
return err;
goto out;
err = -EISCONN;
if (so->state > SS_UNCONNECTED)
goto out;
err = -ENOENT;
if (!try_module_get(THIS_MODULE))
goto out;
svsk = svc_setup_socket(serv, so, SVC_SOCK_DEFAULTS);
if (IS_ERR(svsk)) {
module_put(THIS_MODULE);
err = PTR_ERR(svsk);
goto out;
}
if (kernel_getsockname(svsk->sk_sock, sin, &salen) == 0)
svc_xprt_set_local(&svsk->sk_xprt, sin, salen);
clear_bit(XPT_TEMP, &svsk->sk_xprt.xpt_flags);
spin_lock_bh(&serv->sv_lock);
list_add(&svsk->sk_xprt.xpt_list, &serv->sv_permsocks);
spin_unlock_bh(&serv->sv_lock);
svc_xprt_received(&svsk->sk_xprt);
return svc_one_sock_name(svsk, name_return, len);
out:
sockfd_put(so);
return err;
}
EXPORT_SYMBOL_GPL(svc_addsock);
@ -1567,11 +1565,12 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
}
svsk = svc_setup_socket(serv, sock, flags);
if (!IS_ERR(svsk)) {
svc_xprt_set_local(&svsk->sk_xprt, newsin, newlen);
return (struct svc_xprt *)svsk;
if (IS_ERR(svsk)) {
error = PTR_ERR(svsk);
goto bummer;
}
error = PTR_ERR(svsk);
svc_xprt_set_local(&svsk->sk_xprt, newsin, newlen);
return (struct svc_xprt *)svsk;
bummer:
dprintk("svc: svc_create_socket error = %d\n", -error);
sock_release(sock);