From 519dae9462ede0ac8d71e6cfb58bcbdb38675162 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Sat, 15 Feb 2025 19:50:34 +0800
Subject: [PATCH] Smbios: don't try to scan memory multiple times

---
 src/util/smbiosHelper.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/smbiosHelper.c b/src/util/smbiosHelper.c
index 94f99cdb..be122d3e 100644
--- a/src/util/smbiosHelper.c
+++ b/src/util/smbiosHelper.c
@@ -138,6 +138,7 @@ const FFSmbiosHeaderTable* ffGetSmbiosHeaderTable()
 
     if (buffer.chars == NULL)
     {
+        ffStrbufInit(&buffer);
         #ifndef __HAIKU__
         #ifdef __linux__
         if (!ffAppendFileBuffer("/sys/firmware/dmi/tables/DMI", &buffer))
@@ -289,6 +290,9 @@ const FFSmbiosHeaderTable* ffGetSmbiosHeaderTable()
         }
     }
 
+    if (buffer.length == 0)
+        return NULL;
+
     return &table;
 }
 #elif defined(_WIN32)