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Diffstat (limited to 'net/netlink/genetlink.c')
-rw-r--r--net/netlink/genetlink.c56
1 files changed, 20 insertions, 36 deletions
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 95391e609046..1b897bc92e61 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -295,60 +295,49 @@ int genl_unregister_family(struct genl_family *family)
return -ENOENT;
}
-static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
- int *errp)
+static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct genl_ops *ops;
struct genl_family *family;
struct genl_info info;
struct genlmsghdr *hdr = nlmsg_data(nlh);
- int hdrlen, err = -EINVAL;
+ int hdrlen, err;
family = genl_family_find_byid(nlh->nlmsg_type);
- if (family == NULL) {
- err = -ENOENT;
- goto errout;
- }
+ if (family == NULL)
+ return -ENOENT;
hdrlen = GENL_HDRLEN + family->hdrsize;
if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
- goto errout;
+ return -EINVAL;
ops = genl_get_cmd(hdr->cmd, family);
- if (ops == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops == NULL)
+ return -EOPNOTSUPP;
- if ((ops->flags & GENL_ADMIN_PERM) && security_netlink_recv(skb, CAP_NET_ADMIN)) {
- err = -EPERM;
- goto errout;
- }
+ if ((ops->flags & GENL_ADMIN_PERM) &&
+ security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
if (nlh->nlmsg_flags & NLM_F_DUMP) {
- if (ops->dumpit == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops->dumpit == NULL)
+ return -EOPNOTSUPP;
- *errp = err = netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit, ops->done);
+ err = netlink_dump_start(genl_sock, skb, nlh,
+ ops->dumpit, ops->done);
if (err == 0)
- skb_pull(skb, min(NLMSG_ALIGN(nlh->nlmsg_len),
- skb->len));
- return -1;
+ err = -EINTR;
+ return err;
}
- if (ops->doit == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops->doit == NULL)
+ return -EOPNOTSUPP;
if (family->attrbuf) {
err = nlmsg_parse(nlh, hdrlen, family->attrbuf, family->maxattr,
ops->policy);
if (err < 0)
- goto errout;
+ return err;
}
info.snd_seq = nlh->nlmsg_seq;
@@ -358,12 +347,7 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
info.userhdr = nlmsg_data(nlh) + GENL_HDRLEN;
info.attrs = family->attrbuf;
- *errp = err = ops->doit(skb, &info);
- return err;
-
-errout:
- *errp = err;
- return -1;
+ return ops->doit(skb, &info);
}
static void genl_rcv(struct sock *sk, int len)