[PATCH] dm: __LOW macro fix no. 1

Fix __LOW macro.  [Kevin Corry]

drivers/md/dm-table.c

@@ -79,7 +79,7 @@ static unsigned int int_log(unsigned long n, unsigned long base)
 }
 
 #define __HIGH(l, r) if (*(l) < (r)) *(l) = (r)
-#define __LOW(l, r) if (*(l) < (r)) *(l) = (r)
+#define __LOW(l, r) if (*(l) > (r)) *(l) = (r)
 
 /*
  * Combine two io_restrictions, always taking the lower value.