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-rw-r--r--net/dsa/tag_ar9331.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/tag_ar9331.c b/net/dsa/tag_ar9331.c
index 466ffa92a474..55b00694cdba 100644
--- a/net/dsa/tag_ar9331.c
+++ b/net/dsa/tag_ar9331.c
@@ -31,7 +31,7 @@ static struct sk_buff *ar9331_tag_xmit(struct sk_buff *skb,
__le16 *phdr;
u16 hdr;
- if (skb_cow_head(skb, 0) < 0)
+ if (skb_cow_head(skb, AR9331_HDR_LEN) < 0)
return NULL;
phdr = skb_push(skb, AR9331_HDR_LEN);