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Diffstat (limited to 'include/net/udp.h')
-rw-r--r--include/net/udp.h9
1 files changed, 4 insertions, 5 deletions
diff --git a/include/net/udp.h b/include/net/udp.h
index e9b1d1eacb59..586de4b811b5 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -366,14 +366,13 @@ static inline bool udp_skb_is_linear(struct sk_buff *skb)
static inline int copy_linear_skb(struct sk_buff *skb, int len, int off,
struct iov_iter *to)
{
- int n, copy = len - off;
+ int n;
- if (copy < 0)
- return -EINVAL;
- n = copy_to_iter(skb->data + off, copy, to);
- if (n == copy)
+ n = copy_to_iter(skb->data + off, len, to);
+ if (n == len)
return 0;
+ iov_iter_revert(to, n);
return -EFAULT;
}