Bug 31994

Summary: Resource leak ::Lookup_ChainContextPos2
Product: HarfBuzz Reporter: Juuso Pakarinen <juuso.pakarinen>
Component: srcAssignee: Behdad Esfahbod <freedesktop>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium CC: freedesktop
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Juuso Pakarinen 2010-11-30 02:20:38 UTC
Code analyser tool runned against QT including HarfBuzz reveiled resource leak
::Lookup_ChainContextPos2
Fix proposal:

diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c
index a216005..75e30ae 100644
--- a/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c
+++ b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c
@@ -5172,8 +5172,11 @@ static HB_Error  Lookup_ChainContextPos2(
     return error;
   known_backtrack_classes = 0;
 
-  if (ccpf2->MaxInputLength < 1)
+  if (ccpf2->MaxInputLength < 1) 
+  {
+    FREE( backtrack_classes );
     return HB_Err_Not_Covered;
+  }
 
   if ( ALLOC_ARRAY( input_classes, ccpf2->MaxInputLength, HB_UShort ) )
     goto End3;

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