net: Fix bus in SKB queue splicing interfaces.

Handle the case of head being non-empty, by adding list->qlen
to head->qlen instead of using direct assignment.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 027b061..4a144e8 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -738,7 +738,7 @@ static inline void skb_queue_splice(const struct sk_buff_head *list,
 {
        if (!skb_queue_empty(list)) {
                __skb_queue_splice(list, (struct sk_buff *) head, head->next);
-               head->qlen = list->qlen;
+               head->qlen += list->qlen;
        }
 }
 
@@ -754,7 +754,7 @@ static inline void skb_queue_splice_init(struct sk_buff_head *list,
 {
        if (!skb_queue_empty(list)) {
                __skb_queue_splice(list, (struct sk_buff *) head, head->next);
-               head->qlen = list->qlen;
+               head->qlen += list->qlen;
                __skb_queue_head_init(list);
        }
 }
@@ -769,7 +769,7 @@ static inline void skb_queue_splice_tail(const struct sk_buff_head *list,
 {
        if (!skb_queue_empty(list)) {
                __skb_queue_splice(list, head->prev, (struct sk_buff *) head);
-               head->qlen = list->qlen;
+               head->qlen += list->qlen;
        }
 }
 
@@ -786,7 +786,7 @@ static inline void skb_queue_splice_tail_init(struct sk_buff_head *list,
 {
        if (!skb_queue_empty(list)) {
                __skb_queue_splice(list, head->prev, (struct sk_buff *) head);
-               head->qlen = list->qlen;
+               head->qlen += list->qlen;
                __skb_queue_head_init(list);
        }
 }