From: YOKOTA Hiroshi <yokota.hgml@gmail.com>
Date: Fri, 26 May 2023 21:26:16 +0900
Subject: Revert "Fix loading of PDF from data causing memory corruption
 because PoDoFo now expects the data to outlive the document"

Forwarded: not-needed

This reverts commit 9aa1f4add6940e78abb18fb6c6a995ccd9800c0f.
---
 src/calibre/utils/podofo/doc.cpp  | 3 ---
 src/calibre/utils/podofo/global.h | 1 -
 2 files changed, 4 deletions(-)

diff --git a/src/calibre/utils/podofo/doc.cpp b/src/calibre/utils/podofo/doc.cpp
index 67f49b1..adf8899 100644
--- a/src/calibre/utils/podofo/doc.cpp
+++ b/src/calibre/utils/podofo/doc.cpp
@@ -18,7 +18,6 @@ static void
 PDFDoc_dealloc(PDFDoc* self)
 {
     if (self->doc != NULL) delete self->doc;
-    Py_CLEAR(self->load_buffer_ref);
     Py_TYPE(self)->tp_free((PyObject*)self);
 }
 
@@ -46,8 +45,6 @@ PDFDoc_load(PDFDoc *self, PyObject *args) {
 
 	try {
 		self->doc->LoadFromBuffer(bufferview(buffer, size));
-        self->load_buffer_ref = args;
-        Py_INCREF(args);
 	} catch(const PdfError & err) {
 		podofo_set_exception(err);
 		return NULL;
diff --git a/src/calibre/utils/podofo/global.h b/src/calibre/utils/podofo/global.h
index 87a56cb..3743f76 100644
--- a/src/calibre/utils/podofo/global.h
+++ b/src/calibre/utils/podofo/global.h
@@ -26,7 +26,6 @@ typedef struct {
     PyObject_HEAD
     /* Type-specific fields go here. */
     PdfMemDocument *doc;
-    PyObject *load_buffer_ref;
 
 } PDFDoc;