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Subject[PATCH v2] ipv6: esp6: use BUG_ON instead of if condition followed by BUG
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 <garsilva@embeddedor.com>
---
Changes in v2:
Update the code as suggested by Herbert Xu:

ret = foo();
BUG_ON(ret);

net/ipv6/esp6.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 89910e2..da1f6a6 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -483,8 +483,8 @@ static inline int esp_remove_trailer(struct sk_buff *skb)
goto out;
}

- if (skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2))
- BUG();
+ ret = skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2);
+ BUG_ON(ret);

ret = -EINVAL;
padlen = nexthdr[0];
--
2.7.4
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