From e5bee2335ec13cff0171e9517f862298bb7f0c0a Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@lemstra.org>
Date: Sun, 2 Jan 2022 11:45:29 +0100
Subject: [PATCH] Fixed possible memory leak.

---
 coders/pnm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/coders/pnm.c b/coders/pnm.c
index 20ecad5cf4..5c35b2259b 100644
--- a/coders/pnm.c
+++ b/coders/pnm.c
@@ -232,6 +232,8 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
 { \
   if (comment_info.comment != (char *) NULL)  \
     comment_info.comment=DestroyString(comment_info.comment); \
+  if (quantum_info != (QuantumInfo *) NULL) \
+     quantum_info=DestroyQuantumInfo(quantum_info); \
   ThrowReaderException((exception),(message)); \
 }
 
@@ -298,6 +300,7 @@ static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception)
   /*
     Read PNM image.
   */
+  quantum_info=(QuantumInfo *) NULL;
   count=ReadBlob(image,1,(unsigned char *) &format);
   do
   {