From 0105538d1ed86fa63c04bd458889d0f35dd464ed Mon Sep 17 00:00:00 2001
From: wp_xxyyzz <wp_xxyyzz@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Tue, 12 Mar 2019 22:23:01 +0000
Subject: [PATCH] fpexif: Fix crash when IPTC tag is not found.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@6830 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/fpexif/fpeiptcdata.pas | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/fpexif/fpeiptcdata.pas b/components/fpexif/fpeiptcdata.pas
index 58b01288d..05cafa180 100644
--- a/components/fpexif/fpeiptcdata.pas
+++ b/components/fpexif/fpeiptcdata.pas
@@ -245,6 +245,9 @@ function TIptcData.AddTag(ATag: TTag): Integer;
 var
   idx: Integer;
 begin
+  if ATag = nil then
+    exit(-1);
+
   idx := IndexOfTagID(ATag.TagID);
   if idx <> -1 then begin
     // Replace existing tag