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Fix #21897, ImageList_to_blob frees the blob when it shouldn't.

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commit d0439748c2ea329f6e1242031eed92dbf38b02dd 1 parent a1925cf
rmagick authored
Showing with 5 additions and 3 deletions.
  1. +5 −3 ext/RMagick/rmilist.c
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8 ext/RMagick/rmilist.c
@@ -1,4 +1,4 @@
-/* $Id: rmilist.c,v 1.46.2.1.2.2 2008/05/04 14:21:58 rmagick Exp $ */
+/* $Id: rmilist.c,v 1.46.2.1.2.3 2008/09/10 23:25:13 rmagick Exp $ */
/*============================================================================\
| Copyright (C) 2008 by Timothy P. Hunter
| Name: rmilist.c
@@ -491,7 +491,7 @@ ImageList_optimize_layers(VALUE self, VALUE method)
Notes: this simply calls ImageList.new() in RMagick.rb
*/
VALUE
-rm_imagelist_new()
+rm_imagelist_new(void)
{
return rb_funcall(Class_ImageList, rm_ID_new, 0);
}
@@ -710,9 +710,11 @@ ImageList_to_blob(VALUE self)
#else
blob = ImageToBlob(info, images, &length, &exception);
#endif
- if (exception.severity != UndefinedException)
+ if (blob && exception.severity >= ErrorException)
{
magick_free((void*)blob);
+ blob = NULL;
+ length = 0;
}
rm_split(images);
CHECK_EXCEPTION()
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