linux-kernel - [PATCH 7/11] arch/m32r/kernel/smp.c: trivial: use BUG

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Date:	Tue,  2 Aug 2011 12:35:00 +0200
From:	Julia Lawall <julia@...u.dk>
To:	Hirokazu Takata <takata@...ux-m32r.org>, trivial@...nel.org
Cc:	kernel-janitors@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	linux-m32r@...linux-m32r.org, linux-m32r-ja@...linux-m32r.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 7/11] arch/m32r/kernel/smp.c: trivial: use BUG_ON

From: Julia Lawall <julia@...u.dk>

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@...u.dk>

---
 arch/m32r/kernel/smp.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff -u -p a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -327,8 +327,7 @@ void smp_flush_tlb_page(struct vm_area_s
 	cpumask_clear_cpu(cpu_id, &cpu_mask);
 
 #ifdef DEBUG_SMP
-	if (!mm)
-		BUG();
+	BUG_ON(!mm);
 #endif
 
 	if (*mmc != NO_CONTEXT) {

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