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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-18 16:31:46 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-18 16:31:46 +0200 |
| commit | 922315210b8007a26374e30712813b714af71cac (patch) | |
| tree | 8f80a4df7cfc0e437d4c9c859512ec712cf58aa1 /tools/perf/builtin-script.c | |
| parent | perf evsel: Add missign class prefix to has_branch_stack method (diff) | |
| download | linux-922315210b8007a26374e30712813b714af71cac.tar.xz linux-922315210b8007a26374e30712813b714af71cac.zip | |
perf script: Check sample->callchain before using it
Found by code inspection, while looking at thread__resolve_callchain()
callsites, one had it, the other didn't.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-6r8i2afd3523thuuaxl39yhk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
| -rw-r--r-- | tools/perf/builtin-script.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 0e93282b405e..5099740aa50b 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -791,7 +791,7 @@ static void process_event(struct perf_script *script, if (PRINT_FIELD(IP)) { struct callchain_cursor *cursor = NULL, cursor_callchain; - if (symbol_conf.use_callchain && + if (symbol_conf.use_callchain && sample->callchain && thread__resolve_callchain(al->thread, &cursor_callchain, evsel, sample, NULL, NULL, scripting_max_stack) == 0) cursor = &cursor_callchain; |