[PATCH 1/11] kernel/kfifo.c: trivial: use BUG_ON

From: Julia Lawall
Date: Tue Aug 02 2011 - 06:35:21 EST


From: Julia Lawall <julia@xxxxxxx>

Use BUG_ON(x) rather than if(x) BUG();

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ identifier x; @@
-if (x) BUG();
+BUG_ON(x);

@@ identifier x; @@
-if (!x) BUG();
+BUG_ON(!x);
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
kernel/kfifo.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff -u -p a/kernel/kfifo.c b/kernel/kfifo.c
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -562,8 +562,7 @@ EXPORT_SYMBOL(__kfifo_to_user_r);
unsigned int __kfifo_dma_in_prepare_r(struct __kfifo *fifo,
struct scatterlist *sgl, int nents, unsigned int len, size_t recsize)
{
- if (!nents)
- BUG();
+ BUG_ON(!nents);

len = __kfifo_max_r(len, recsize);

@@ -586,8 +585,7 @@ EXPORT_SYMBOL(__kfifo_dma_in_finish_r);
unsigned int __kfifo_dma_out_prepare_r(struct __kfifo *fifo,
struct scatterlist *sgl, int nents, unsigned int len, size_t recsize)
{
- if (!nents)
- BUG();
+ BUG_ON(!nents);

len = __kfifo_max_r(len, recsize);


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