From 09a6d825b7369bf04e9c4300f7f3f8d9e9d4dda2 Mon Sep 17 00:00:00 2001
From: rmagueta <rmagueta@allbesmart.pt>
Date: Wed, 9 Jun 2021 12:37:16 +0100
Subject: [PATCH] Avoid read null pointer file

---
 common/utils/system.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/common/utils/system.c b/common/utils/system.c
index 37622932ff..bf87bd45c2 100644
--- a/common/utils/system.c
+++ b/common/utils/system.c
@@ -101,10 +101,13 @@ static int baseRunTimeCommand(char* cmd) {
   size_t retSize = 0;
 
   fp = popen(cmd, "r");
-
-  memset(cmd, 1, sizeof(*cmd));
-  retSize = fread(cmd, 1, sizeof(*cmd), fp);
-  fclose(fp);
+  if(fp) {
+    memset(cmd, 1, sizeof(*cmd));
+    retSize = fread(cmd, 1, sizeof(*cmd), fp);
+    fclose(fp);
+  } else {
+    LOG_D(HW,"%s:%d:%s: Cannot open %s\n", __FILE__, __LINE__, __FUNCTION__, cmd);
+  }
 
   if (retSize == 0) {
     return 0;