Subject: [PATCH] ipv6: esp6: use BUG_ON instead of if condition followed by BUG

From: "Gustavo A. R. Silva" <[email-masked]>
Date: Tue, 24 Oct 2017 11:28:26 -0500

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 <[email-masked]>
---
 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));
 
 	ret = -EINVAL;
 	padlen = nexthdr[0];
-- 
2.7.4