classify/adaptmatch: Fix memory leak

Coverity report:

CID 1340280 (#1 of 1): Resource leak (RESOURCE_LEAK)
7. leaked_storage: Variable FloatFeatures going out of scope leaks the storage it points to.

Signed-off-by: Stefan Weil <[email protected]>

Author: stweil

classify/adaptmatch.cpp

@@ -907,8 +907,10 @@ void Classify::AdaptToChar(TBLOB* Blob, CLASS_ID ClassId, int FontinfoId,
     IClass = ClassForClassId(adaptive_templates->Templates, ClassId);
 
     NumFeatures = GetAdaptiveFeatures(Blob, IntFeatures, &FloatFeatures);
-    if (NumFeatures <= 0)
+    if (NumFeatures <= 0) {
+      FreeFeatureSet(FloatFeatures);
       return;
+    }
 
     // Only match configs with the matching font.
     BIT_VECTOR MatchingFontConfigs = NewBitVector(MAX_NUM_PROTOS);