diff options
| author | Changbin Du <changbin.du@gmail.com> | 2019-03-16 16:05:49 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-20 09:07:49 +0200 |
| commit | 6fae20e891d27308325b8a024ddb4a01c43d5cae (patch) | |
| tree | 8e56a75abad9c432ead5f477d0fbf239a5959d95 /tools | |
| parent | 756e9ca6169ce3d4742ee2339752ecc78b71ad73 (diff) | |
perf hist: Add missing map__put() in error case
[ Upstream commit cb6186aeffda4d27e56066c79e9579e7831541d3 ]
We need to map__put() before returning from failure of
sample__resolve_callchain().
Detected with gcc's ASan.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fixes: 9c68ae98c6f7 ("perf callchain: Reference count maps")
Link: http://lkml.kernel.org/r/20190316080556.3075-10-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/hist.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index ad613ea51434..82833ceba339 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1027,8 +1027,10 @@ int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al, err = sample__resolve_callchain(iter->sample, &callchain_cursor, &iter->parent, iter->evsel, al, max_stack_depth); - if (err) + if (err) { + map__put(alm); return err; + } err = iter->ops->prepare_entry(iter, al); if (err) |