Make sure the struct perf_hpp_fmt is properly
unhooked before we free it.
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Jiri Olsa <[email protected]>
---
tools/perf/ui/hist.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 6ee6b36bbc76..db79017a6e56 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -606,6 +606,13 @@ void perf_hpp__append_sort_keys(struct perf_hpp_list *list)
static void fmt_free(struct perf_hpp_fmt *fmt)
{
+ /*
+ * At this point fmt should be completely
+ * unhooked, if not it's a bug.
+ */
+ BUG_ON(!list_empty(&fmt->list));
+ BUG_ON(!list_empty(&fmt->sort_list));
+
if (fmt->free)
fmt->free(fmt);
}
--
2.13.6
