1 files changed, 5 insertions, 6 deletions
diff --git a/power-8953.c b/power-8953.c
index cd372d7..3b85a04 100644
--- a/power-8953.c
+++ b/power-8953.c
@@ -62,17 +62,16 @@ static int display_fd;
 #define SYS_DISPLAY_PWR "/sys/kernel/hbtp/display_pwr"
 
 /**
- * If target is SDM632:
- *     return true
- * else:
- *     return false
+ * Returns true if the target is SDM632.
  */
 static bool is_target_SDM632(void) {
-    static bool is_SDM632 = false;
+    static int is_SDM632 = -1;
     int soc_id;
 
+    if (is_SDM632 >= 0) return is_SDM632;
+
     soc_id = get_soc_id();
-    if (soc_id == 349 || soc_id == 350) is_SDM632 = true;
+    is_SDM632 = soc_id == 349 || soc_id == 350;
 
     return is_SDM632;
 }