From 301ed88a43726ca3df8cbd05ac44558dc4b9c353 Mon Sep 17 00:00:00 2001
From: Vijay Pai <vpai@google.com>
Date: Wed, 20 Feb 2019 21:39:02 -0800
Subject: [PATCH] Avoid unused result warning

---
 src/cpp/server/load_reporter/get_cpu_stats_linux.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cpp/server/load_reporter/get_cpu_stats_linux.cc b/src/cpp/server/load_reporter/get_cpu_stats_linux.cc
index 9c1fd0cd0b8..561d4f50482 100644
--- a/src/cpp/server/load_reporter/get_cpu_stats_linux.cc
+++ b/src/cpp/server/load_reporter/get_cpu_stats_linux.cc
@@ -32,7 +32,10 @@ std::pair<uint64_t, uint64_t> GetCpuStatsImpl() {
   FILE* fp;
   fp = fopen("/proc/stat", "r");
   uint64_t user, nice, system, idle;
-  fscanf(fp, "cpu %lu %lu %lu %lu", &user, &nice, &system, &idle);
+  if (fscanf(fp, "cpu %lu %lu %lu %lu", &user, &nice, &system, &idle) != 4) {
+    // Something bad happened with the information, so assume it's all invalid
+    user = nice = system = idle = 0;
+  }
   fclose(fp);
   busy = user + nice + system;
   total = busy + idle;