From 251d00eb0e924ef6fb183e03c07122826d1c4f10 Mon Sep 17 00:00:00 2001
From: Florian Mayer <fmayer@google.com>
Date: Wed, 22 Nov 2023 11:24:27 +0000
Subject: [PATCH] Handle empty read from file.

Test: run /vendor/bin/dump/dump_power
Bug: 312681873
Change-Id: I8c49cf7f0048190f02d35d50984abca361d517f1
---
 dumpstate/dump_power.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dumpstate/dump_power.cpp b/dumpstate/dump_power.cpp
index e334f58c..9da35450 100644
--- a/dumpstate/dump_power.cpp
+++ b/dumpstate/dump_power.cpp
@@ -362,7 +362,7 @@ void dumpBatteryDefend() {
 
         for (auto &file : files) {
             fileLocation = std::string(config[1]) + std::string(file);
-            if (!android::base::ReadFileToString(fileLocation, &content)) {
+            if (!android::base::ReadFileToString(fileLocation, &content) || content.empty()) {
                 content = "\n";
             }