On Tue, Oct 24, 2017 at 11:28:26AM -0500, Gustavo A. R. Silva wrote:
> Use BUG_ON instead of if condition followed by BUG in esp_remove_trailer.
>
> This issue was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
> ---
> net/ipv6/esp6.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
> index 89910e2..603ff06 100644
> --- a/net/ipv6/esp6.c
> +++ b/net/ipv6/esp6.c
> @@ -483,8 +483,7 @@ static inline int esp_remove_trailer(struct sk_buff *skb)
> goto out;
> }
>
> - if (skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2))
> - BUG();
> + BUG_ON(skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2));
How about
ret = skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2);
BUG_ON(ret);
Thanks,
--
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
