Invalid read return value fix

Fixes esp8266#7814. Return 0, not MAXINT, when a read is called on a File without a backing instance of a SPIFFS/LittleFS/SD File.
earlephilhower · Jan 8, 2021 · 9968dce · 9968dce
1 parent 100a8df
commit 9968dce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cores/esp8266/FS.cpp b/cores/esp8266/FS.cpp
@@ -68,7 +68,7 @@ int File::read() {
 
 size_t File::read(uint8_t* buf, size_t size) {
     if (!_p)
-        return -1;
+        return 0;
 
     return _p->read(buf, size);
 }