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| author |   Riccardo Mancini <rickyman7@gmail.com> | 2021-07-15 18:07:06 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-07-15 17:25:24 -0300 |
| commit | 0967ebffe098157180a0bbd180ac90348c6e07d7 (patch) | |
| tree | 14e4aebf165757b0e85bf5a15fe19076db0d6139 /tools/perf/builtin-inject.c | |
| parent | perf cs-etm: Split Coresight decode by aux records (diff) | |
| download | linux-dev-0967ebffe098157180a0bbd180ac90348c6e07d7.tar.xz linux-dev-0967ebffe098157180a0bbd180ac90348c6e07d7.zip | |
perf inject: Fix dso->nsinfo refcounting
ASan reports a memory leak of nsinfo during the execution of:
# perf test "31: Lookup mmap thread"
The leak is caused by a refcounted variable being replaced without
dropping the refcount.
This patch makes sure that the refcnt of nsinfo is decreased when a
refcounted variable is replaced with a new value.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 27c9c3424fc217da ("perf inject: Add --buildid-all option")
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/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-inject.c')
| -rw-r--r-- | tools/perf/builtin-inject.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 5d6f583e2cd3..ffd2b25039e3 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -361,9 +361,10 @@ static struct dso *findnew_dso(int pid, int tid, const char *filename, dso = machine__findnew_dso_id(machine, filename, id); } - if (dso) + if (dso) { + nsinfo__put(dso->nsinfo); dso->nsinfo = nsi; - else + } else nsinfo__put(nsi); thread__put(thread); |