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[IPV4]: Fix rtm_to_ifaddr() error handling.

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Return negative error value (embedded in the pointer) instead of
returning NULL.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Evgeniy Polyakov 2007-03-09 13:43:24 -08:00 committed by David S. Miller
parent 30fbc9f77c
commit c4e38f41e3
1 changed files with 3 additions and 1 deletions
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4
net/ipv4/devinet.c
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@ -502,8 +502,10 @@ static struct in_ifaddr *rtm_to_ifaddr(struct nlmsghdr *nlh)
goto errout;
ifm = nlmsg_data(nlh);
if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL)
if (ifm->ifa_prefixlen > 32 || tb[IFA_LOCAL] == NULL) {
err = -EINVAL;
goto errout;
}
dev = __dev_get_by_index(ifm->ifa_index);
if (dev == NULL) {