net: remove BUG_ON from __pskb_pull_tail

if list is NULL pointer, and the following access of list
will trigger panic, which is same as BUG_ON

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index fcb1155a00ec3d4fc4d665c41b37ca980f93bfcb..f95ab41c9fb9c6dd04d585c44cd706d910c1b075 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1925,8 +1925,6 @@ void *__pskb_pull_tail(struct sk_buff *skb, int delta)
                struct sk_buff *insp = NULL;
 
                do {
-                       BUG_ON(!list);
-
                        if (list->len <= eat) {
                                /* Eaten as whole. */
                                eat -= list->len;