[PATCH] ipv4: esp4: use BUG_ON instead of if condition followed by BUG

[Gustavo A. R. Silva]

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/ipv4/esp4.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index b00e4a4..89b6c5e 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -521,8 +521,7 @@ 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));
 
        ret = -EINVAL;
        padlen = nexthdr[0];
-- 
2.7.4