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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-04-08 11:57:03 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-04-10 10:13:58 -0300 |
| commit | d998b732599b304c3865e8e5c7ba6250faba6589 (patch) | |
| tree | a4575d1adf2fce2879fece66c2b767f4fc46708d /tools | |
| parent | 7764a385f60bd200304a33124bdb4e684caeabdf (diff) | |
| download | lwn-d998b732599b304c3865e8e5c7ba6250faba6589.tar.gz lwn-d998b732599b304c3865e8e5c7ba6250faba6589.zip | |
perf tools: Fix error path to do closedir() when synthesizing threads
When traversing /proc to synthesize the PERF_RECORD_FORK et al events we
were bailing out on errors without calling closedir(), fix it.
Reported-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vxtp593rfztgbi8noy0m967p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/event.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 9d0985131252..ff866c4d2e2f 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -387,6 +387,7 @@ static int __event__synthesize_thread(union perf_event *comm_event, DIR *tasks; struct dirent dirent, *next; pid_t tgid, ppid; + int rc = 0; /* special case: only send one comm event using passed in pid */ if (!full) { @@ -414,38 +415,38 @@ static int __event__synthesize_thread(union perf_event *comm_event, while (!readdir_r(tasks, &dirent, &next) && next) { char *end; - int rc = 0; pid_t _pid; _pid = strtol(dirent.d_name, &end, 10); if (*end) continue; + rc = -1; if (perf_event__prepare_comm(comm_event, _pid, machine, &tgid, &ppid) != 0) - return -1; + break; if (perf_event__synthesize_fork(tool, fork_event, _pid, tgid, ppid, process, machine) < 0) - return -1; + break; /* * Send the prepared comm event */ if (process(tool, comm_event, &synth_sample, machine) != 0) - return -1; + break; + rc = 0; if (_pid == pid) { /* process the parent's maps too */ rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, process, machine, mmap_data); + if (rc) + break; } - - if (rc) - return rc; } closedir(tasks); - return 0; + return rc; } int perf_event__synthesize_thread_map(struct perf_tool *tool, |