1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 3c092117a8ea..260a323a96d3 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -1151,7 +1151,7 @@ isdn_ppp_push_higher(isdn_net_dev * net_dev, isdn_net_local * lp, struct sk_buff
         {
                 u_int16_t *p = (u_int16_t *) skb->data;
 
-                *p = 0; /* indicate inbound in DLT_LINUX_SLL */
+                *p = 0; /* indicate inbound */
         }
 
         if (is->pass_filter
@@ -1293,12 +1293,12 @@ isdn_ppp_xmit(struct sk_buff *skb, struct net_device *netdev)
         /* check if we should pass this packet
          * the filter instructions are constructed assuming
          * a four-byte PPP header on each packet */
-        skb_push(skb, 4);
+        *skb_push(skb, 4) = 1; /* indicate outbound */
 
         {
                 u_int16_t *p = (u_int16_t *) skb->data;
 
-                *p++ = htons(4); /* indicate outbound in DLT_LINUX_SLL */
+                p++;
                 *p   = htons(proto);
         }
 
@@ -1491,12 +1491,12 @@ int isdn_ppp_autodial_filter(struct sk_buff *skb, isdn_net_local *lp)
          * temporarily remove part of the fake header stuck on
          * earlier.
          */
-        skb_pull(skb, IPPP_MAX_HEADER - 4);
+        *skb_pull(skb, IPPP_MAX_HEADER - 4) = 1; /* indicate outbound */
 
         {
                 u_int16_t *p = (u_int16_t *) skb->data;
 
-                *p++ = htons(4);        /* indicate outbound in DLT_LINUX_SLL */
+                p++;
                 *p   = htons(proto);
         }