From 886bde47d651aee37b47d53b8c74abf0ea51ab53 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Thu, 9 Apr 2026 14:01:24 +0800
Subject: [PATCH] Battery (Linux): checks if battery's present before parsing

---
 src/detection/battery/battery_linux.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/detection/battery/battery_linux.c b/src/detection/battery/battery_linux.c
index 5bf25f49f..29a259b6a 100644
--- a/src/detection/battery/battery_linux.c
+++ b/src/detection/battery/battery_linux.c
@@ -12,6 +12,14 @@
 static bool parseBattery(int dfd, const char* id, FFBatteryOptions* options, FFlist* results, bool* acConnected) {
     FF_STRBUF_AUTO_DESTROY tmpBuffer = ffStrbufCreate();
 
+    {
+        char present = '\0';
+        if (ffReadFileDataRelative(dfd, "present", 1, &present) && present == '0') {
+            FF_DEBUG("Battery \"%s\": Not present", id);
+            return false;
+        }
+    }
+
     // type must exist
     if (!ffReadFileBufferRelative(dfd, "type", &tmpBuffer)) {
         FF_DEBUG("Battery \"%s\": No type file", id);