Don't use free() directly. This caused a crash since ast_filestream is now an ao2 object.

Reported by JunK-Y on IRC, #asterisk-dev


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@167541 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/file.c

@@ -468,7 +468,7 @@ static int ast_filehelper(const char *filename, const void *arg2, const char *fm
 				if (open_wrapper(s)) {
 					fclose(bfile);
 					free(fn);
-					free(s);
+					ast_closestream(s);
 					continue;	/* cannot run open on file */
 				}
 				/* ok this is good for OPEN */