[PATCH] I2C: Fix i2c busses warnings with DEBUG

Two bus drivers (i2c-via and scx200_acb.c) generate warnings when the
whole i2c subsystem is compiled with -DDEBUG. Suggested changes follow.

drivers/i2c/busses/i2c-via.c

@@ -21,7 +21,7 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#define DEBUG
+/* #define DEBUG */
 
 #include <linux/kernel.h>
 #include <linux/module.h>

drivers/i2c/busses/scx200_acb.c

@@ -47,9 +47,7 @@ static int base[MAX_DEVICES] = { 0x840 };
 MODULE_PARM(base, "1-4i");
 MODULE_PARM_DESC(base, "Base addresses for the ACCESS.bus controllers");
 
-#define DEBUG 0
-
-#if DEBUG
+#ifdef DEBUG
 #define DBG(x...) printk(KERN_DEBUG NAME ": " x)
 #else
 #define DBG(x...)
@@ -374,7 +372,7 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
 	if (rc == 0 && size == I2C_SMBUS_WORD_DATA && rw == I2C_SMBUS_READ)
 	    	data->word = le16_to_cpu(cur_word);
 
-#if DEBUG
+#ifdef DEBUG
 	printk(KERN_DEBUG NAME ": transfer done, result: %d", rc);
 	if (buffer) {
 		int i;