x86: BUG to BUG_ON changes

Impact: cleanup

Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com>
LKML-Reference: <1236661850-8237-8-git-send-email-stoyboyker@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 309949e..6a5a2970 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -74,8 +74,7 @@
 	if (!force_hpet_address)
 		return;
 
-	if (rcba_base == NULL)
-		BUG();
+	BUG_ON(rcba_base == NULL);
 
 	/* read the Function Disable register, dword mode only */
 	val = readl(rcba_base + 0x3404);