CPU (Linux): don't crash if /sys/devices/system/cpu/cpufreq/ doesn't exist

CarterLi · CarterLi · commit 4a7e60ef5778 · 2024-03-07T21:31:23.000+08:00
Ref: #750
diff --git a/src/detection/cpu/cpu_linux.c b/src/detection/cpu/cpu_linux.c
@@ -107,6 +107,8 @@ static bool detectFrequency(FFCPUResult* cpu)
 {
     FF_STRBUF_AUTO_DESTROY path = ffStrbufCreateS("/sys/devices/system/cpu/cpufreq/");
     FF_AUTO_CLOSE_DIR DIR* dir = opendir(path.chars);
+    if (!dir) return false;
+
     FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
     uint32_t baseLen = path.length;
     bool flag = false;

Original file line number	Diff line number	Diff line change
`@@ -107,6 +107,8 @@ static bool detectFrequency(FFCPUResult* cpu)`
`107`	`107`	`{`
`108`	`108`	`FF_STRBUF_AUTO_DESTROY path = ffStrbufCreateS("/sys/devices/system/cpu/cpufreq/");`
`109`	`109`	`FF_AUTO_CLOSE_DIR DIR* dir = opendir(path.chars);`
	`110`	`+ if (!dir) return false;`
	`111`	`+`
`110`	`112`	`FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();`
`111`	`113`	`uint32_t baseLen = path.length;`
`112`	`114`	`bool flag = false;`