arch/openrisc/mm/init.c: trivial: use BUG_ON

Author: Julia Lawall <julia@diku.dk>

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

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

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

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

Signed-off-by: Julia Lawall 
Signed-off-by: Jonas Bonn 
---
 arch/openrisc/mm/init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
 
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 359dcb2..736f6b2 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -222,8 +222,7 @@ void __init mem_init(void)
 {
 	int codesize, reservedpages, datasize, initsize;
 
-	if (!mem_map)
-		BUG();
+	BUG_ON(!mem_map);
 
 	set_max_mapnr_init();