[NET]: Fix uninitialised variable in ip_frag_reasm()

Fix uninitialised variable in ip_frag_reasm().  err should be set to
-ENOMEM if the initial call of skb_clone() fails.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 453ae04..2143bf3 100644 (file)
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -486,7 +486,6 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
        if (prev) {
                head = prev->next;
                fp = skb_clone(head, GFP_ATOMIC);
-
                if (!fp)
                        goto out_nomem;
 
@@ -512,7 +511,6 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
                goto out_oversize;
 
        /* Head of list must not be cloned. */
-       err = -ENOMEM;
        if (skb_cloned(head) && pskb_expand_head(head, 0, 0, GFP_ATOMIC))
                goto out_nomem;
 
@@ -568,6 +566,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
 out_nomem:
        LIMIT_NETDEBUG(KERN_ERR "IP: queue_glue: no memory for gluing "
                              "queue %p\n", qp);
+       err = -ENOMEM;
        goto out_fail;
 out_oversize:
        if (net_ratelimit())