From 614135da5ba8c2b3dbb0aad6aaa9bb2159836368 Mon Sep 17 00:00:00 2001
From: BrianDelalex <brian.delalex@outlook.com>
Date: Mon, 20 Nov 2023 08:23:26 +0100
Subject: [PATCH] Improve error checking when saving images in TIFF format

Use TIFFFlush() in wxTIFFHandler::SaveFile() in order to check for
success when saving TIFF images, as TIFFClose() doesn't have any error
code to do it.

Closes #23214.

Closes #24072.
---
 src/common/imagtiff.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/common/imagtiff.cpp b/src/common/imagtiff.cpp
index 12d8d35e5f..fca23f48c6 100644
--- a/src/common/imagtiff.cpp
+++ b/src/common/imagtiff.cpp
@@ -859,6 +859,20 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
         ptr += imageWidth * 3;
     }
 
+    if (!TIFFFlush(tif))
+    {
+        if (verbose)
+        {
+            wxLogError( _("TIFF: Error flushing data.") );
+        }
+
+        TIFFClose(tif);
+        if (buf)
+            _TIFFfree(buf);
+
+        return false;
+    }
+
     (void) TIFFClose(tif);
 
     if (buf)