qeth: fix offset error in non prealloc header path

For the non preallocated qeth header code path we should not
change the header length.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 7de410d5be4a..52d26592c72c 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3025,7 +3025,7 @@ static inline void __qeth_fill_buffer(struct sk_buff *skb,
         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
         int offset)
 {
-        int length = skb->len - offset;
+        int length = skb->len;
         int length_here;
         int element;
         char *data;
@@ -3037,6 +3037,7 @@ static inline void __qeth_fill_buffer(struct sk_buff *skb,
 
         if (offset >= 0) {
                 data = skb->data + offset;
+                length -= offset;
                 first_lap = 0;
         }