diff options
| author | Jiri Olsa <[email protected]> | 2017-10-13 10:37:29 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2017-10-13 16:43:42 -0300 |
| commit | d0e35234f647631ddfa5fa8c8ec66c9bc698f0ab (patch) | |
| tree | a55490132931aabe43d2e2dd38ea2c0d80061d68 | |
| parent | 70b01dfd765dd2196d51f33a49df23954416f34a (diff) | |
perf hists: Add extra integrity checks to fmt_free()
Make sure the struct perf_hpp_fmt is properly unhooked before we free
it.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/ui/hist.c | 7 |
1 files changed, 7 insertions, 0 deletions
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 @@ next: 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); } |