perf annotate: Add annotated_source__purge function

Mov disasm__purge() to annotated_source__purge() to make it work over a
generic struct annotation_line.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20171011150158.11895-16-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7c74700..0c2eb95 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1985,13 +1985,13 @@ void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
 	}
 }
 
-void disasm__purge(struct list_head *head)
+void annotated_source__purge(struct annotated_source *as)
 {
-	struct disasm_line *pos, *n;
+	struct annotation_line *al, *n;
 
-	list_for_each_entry_safe(pos, n, head, al.node) {
-		list_del(&pos->al.node);
-		disasm_line__free(pos);
+	list_for_each_entry_safe(al, n, &as->source, node) {
+		list_del(&al->node);
+		disasm_line__free(disasm_line(al));
 	}
 }
 
@@ -2047,7 +2047,7 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
 	if (print_lines)
 		symbol__free_source_line(sym, len);
 
-	disasm__purge(&symbol__annotation(sym)->src->source);
+	annotated_source__purge(symbol__annotation(sym)->src);
 
 	return 0;
 }