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| author | Riccardo Mancini <rickyman7@gmail.com> | 2021-07-15 19:07:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-28 15:35:35 +0300 |
| commit | b7bfd8aeb95622f5bd1b4fa229ceb0b88ed4ef5a (patch) | |
| tree | ad7b1b23417e8adf86c258308988cee2b94a2351 /tools/perf | |
| parent | c9c101da3e83563e595693282167c04592b5536d (diff) | |
| download | linux-b7bfd8aeb95622f5bd1b4fa229ceb0b88ed4ef5a.tar.xz | |
perf dso: Fix memory leak in dso__new_map()
[ Upstream commit 581e295a0f6b5c2931d280259fbbfff56959faa9 ]
ASan reports a memory leak when running:
# perf test "65: maps__merge_in".
The causes of the leaks are two, this patch addresses only the first
one, which is related to dso__new_map().
The bug is that dso__new_map() creates a new dso but never decreases the
refcount it gets from creating it.
This patch adds the missing dso__put().
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: d3a7c489c7fd2463 ("perf tools: Reference count struct dso")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/60bfe0cd06e89e2ca33646eb8468d7f5de2ee597.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/dso.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 55c11e854fe4..b1ff0c9f32da 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -1141,8 +1141,10 @@ struct map *dso__new_map(const char *name) struct map *map = NULL; struct dso *dso = dso__new(name); - if (dso) + if (dso) { map = map__new2(0, dso); + dso__put(dso); + } return map; } |