From ee5eb943f74f8c12f9802a337b41f012c8a9a5c6 Mon Sep 17 00:00:00 2001
From: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
Date: Tue, 5 Oct 2021 15:04:10 +0200
Subject: [PATCH] [File] Fix FileAccessCompressed::get_buffer return value.

It used to return the write index instead of the written bytes (i.e.
index + 1) when reading until last block.

(cherry picked from commit e8f7b79bb00870a6c6b64f81f9a6d7ecea50d823)
---
 core/io/file_access_compressed.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/io/file_access_compressed.cpp b/core/io/file_access_compressed.cpp
index a632ff28f31..f3239335e1c 100644
--- a/core/io/file_access_compressed.cpp
+++ b/core/io/file_access_compressed.cpp
@@ -315,10 +315,10 @@ uint64_t FileAccessCompressed::get_buffer(uint8_t *p_dst, uint64_t p_length) con
 			} else {
 				read_block--;
 				at_end = true;
-				if (i < p_length - 1) {
+				if (i + 1 < p_length) {
 					read_eof = true;
 				}
-				return i;
+				return i + 1;
 			}
 		}
 	}