Fix memory leaks by using more specialized xml*Free functions.

mattrajca · ianpartridge · commit d319083797f8 · 2017-08-16T12:32:30.000+01:00
Fixes https://bugs.swift.org/browse/SR-5256.
diff --git a/CoreFoundation/Parsing.subproj/CFXMLInterface.c b/CoreFoundation/Parsing.subproj/CFXMLInterface.c
@@ -893,8 +893,8 @@ CFArrayRef _CFXMLNodesForXPath(_CFXMLNodePtr node, const unsigned char* xpath) {
         CFArrayAppendValue(results, nodes->nodeTab[i]);
     }
 
-    xmlFree(context);
-    xmlFree(evalResult);
+    xmlXPathFreeContext(context);
+    xmlXPathFreeObject(evalResult);
 
     return results;
 }

Original file line number	Diff line number	Diff line change
`@@ -893,8 +893,8 @@ CFArrayRef _CFXMLNodesForXPath(_CFXMLNodePtr node, const unsigned char* xpath) {`
`893`	`893`	`CFArrayAppendValue(results, nodes->nodeTab[i]);`
`894`	`894`	`}`
`895`	`895`
`896`		`- xmlFree(context);`
`897`		`- xmlFree(evalResult);`
	`896`	`+ xmlXPathFreeContext(context);`
	`897`	`+ xmlXPathFreeObject(evalResult);`
`898`	`898`
`899`	`899`	`return results;`
`900`	`900`	`}`