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dd a missing break; in the segment release dispatch. Release of symbol
dictionary segments was falling through and causing a double free of
the result. Bug 688004.


git-svn-id: http://svn.ghostscript.com/jbig2dec/trunk@390 ded80894-8fb9-0310-811b-c03f3676ab4d

--- a/jbig2_segment.c

+++ b/jbig2_segment.c

@@ -135,6 +135,7 @@

     switch (segment->flags & 63) {

 	case 0:  /* symbol dictionary */

 	  jbig2_sd_release(ctx, segment->result);

+	  break;

 	case 4:  /* intermediate text region */

 	case 40: /* intermediate refinement region */

 	  if (segment->result != NULL)

@@ -144,7 +145,7 @@

 	  jbig2_metadata_free(ctx, segment->result);

 	  break;

 	default:

-	  /* anything is is probably an undefined pointer */

+	  /* anything else is probably an undefined pointer */

 	  break;

     }

   jbig2_free (ctx->allocator, segment);