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Commit a906c1aa authored by Roopa Prabhu's avatar Roopa Prabhu Committed by David S. Miller
Browse files

mpls: fix uninitialized in_label var warning in mpls_getroute 



Fix the below warning generated by static checker:
    net/mpls/af_mpls.c:2111 mpls_getroute()
    error: uninitialized symbol 'in_label'."

Fixes: 397fc9e5 ("mpls: route get support")
Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarRoopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 11bafd54

net/mpls/af_mpls.c

+8 −4
Original line number Diff line number Diff line
@@ -2076,6 +2076,7 @@ static int mpls_getroute(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, 
{

	struct net *net = sock_net(in_skb->sk);

	u32 portid = NETLINK_CB(in_skb).portid;

	u32 in_label = LABEL_NOT_SPECIFIED;

	struct nlattr *tb[RTA_MAX + 1];

	u32 labels[MAX_NEW_LABELS];

	struct mpls_shim_hdr *hdr;
@@ -2086,9 +2087,8 @@ static int mpls_getroute(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, 
	struct nlmsghdr *nlh;

	struct sk_buff *skb;

	struct mpls_nh *nh;

	int err = -EINVAL;

	u32 in_label;

	u8 n_labels;

	int err;



	err = nlmsg_parse(in_nlh, sizeof(*rtm), tb, RTA_MAX,

			  rtm_mpls_policy, extack);
@@ -2101,12 +2101,16 @@ static int mpls_getroute(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, 
		u8 label_count;



		if (nla_get_labels(tb[RTA_DST], 1, &label_count,

				   &in_label, extack))

				   &in_label, extack)) {

			err = -EINVAL;

			goto errout;

		}



		if (in_label < MPLS_LABEL_FIRST_UNRESERVED)

		if (!mpls_label_ok(net, in_label, extack)) {

			err = -EINVAL;

			goto errout;

		}

	}



	rt = mpls_route_input_rcu(net, in_label);

	if (!rt) {