[PATCH] net/core: Fix BUG to BUG_ON conditionals.

From: Tim Hansen
Date: Sun Oct 08 2017 - 15:17:34 EST


Fix BUG() calls to use BUG_ON(conditional) macros.

This was found using make coccicheck M=net/core on linux next
tag next-20170929.

Signed-off-by: Tim Hansen <devtimhansen@xxxxxxxxx>
---
net/core/skbuff.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d98c2e3ce2bf..461516f45b33 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1350,8 +1350,7 @@ struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask)
/* Set the tail pointer and length */
skb_put(n, skb->len);

- if (skb_copy_bits(skb, -headerlen, n->head, headerlen + skb->len))
- BUG();
+ BUG_ON(skb_copy_bits(skb, -headerlen, n->head, headerlen + skb->len));

copy_skb_header(n, skb);
return n;
@@ -1449,8 +1448,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,

BUG_ON(nhead < 0);

- if (skb_shared(skb))
- BUG();
+ BUG_ON(skb_shared(skb));

size = SKB_DATA_ALIGN(size);

@@ -1595,9 +1593,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
head_copy_off = newheadroom - head_copy_len;

/* Copy the linear header and data. */
- if (skb_copy_bits(skb, -head_copy_len, n->head + head_copy_off,
- skb->len + head_copy_len))
- BUG();
+ BUG_ON(skb_copy_bits(skb, -head_copy_len, n->head + head_copy_off,
+ skb->len + head_copy_len));

copy_skb_header(n, skb);

@@ -1878,8 +1875,8 @@ void *__pskb_pull_tail(struct sk_buff *skb, int delta)
return NULL;
}

- if (skb_copy_bits(skb, skb_headlen(skb), skb_tail_pointer(skb), delta))
- BUG();
+ BUG_ON(skb_copy_bits(skb, skb_headlen(skb),
+ skb_tail_pointer(skb), delta))

/* Optimization: no fragments, no reasons to preestimate
* size of pulled pages. Superb.
--
2.14.2