wakelock: Fix operator precedence bug

Change-Id: I21366ace371d1b8f4684ddbe4ea8d555a926ac21
Signed-off-by: Colin Cross <ccross@google.com>
diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
index ca48bb8..d3d7fd6 100644
--- a/kernel/power/wakelock.c
+++ b/kernel/power/wakelock.c
@@ -222,7 +222,7 @@
 				pr_info("wake lock %s, expired\n", lock->name);
 		} else {
 			pr_info("active wake lock %s\n", lock->name);
-			if (!debug_mask & DEBUG_EXPIRE)
+			if (!(debug_mask & DEBUG_EXPIRE))
 				print_expired = false;
 		}
 	}