libkern/c%2B%2B/OSKext.cpp

8235     OSData           * contextWrapper  = NULL;  // must release
8326         contextWrapper = OSData::withBytes((void *)&context, sizeof(void *));
8336         if (!contextWrapper || !_OSKextSetRequestArgument(callbackRecord,
8337             kKextRequestArgumentContextKey, contextWrapper)) {
8392     if (contextWrapper)  contextWrapper->release();
8491     OSData                        * contextWrapper  = NULL;  // do not release
8517     contextWrapper = OSDynamicCast(OSData, _OSKextGetRequestArgument(callbackRecord,
8519     context = _OSKextExtractPointer(contextWrapper);
8520     if (contextWrapper && !context) {
8620     OSData       * contextWrapper = NULL;  // do not release
8628         contextWrapper = OSDynamicCast(OSData,
8631         *contextOut = _OSKextExtractPointer(contextWrapper);