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| author | Namhyung Kim <namhyung@kernel.org> | 2016-10-01 12:17:00 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-05 16:36:22 +0200 |
| commit | a130347973c408c0e0017a52c74cbc3226c1f0ef (patch) | |
| tree | 3e4220aa0ef7c084300abf8b8a9f1614417b360a /tools | |
| parent | perf intel-pt: Fix MTC timestamp calculation for large MTC periods (diff) | |
| download | linux-a130347973c408c0e0017a52c74cbc3226c1f0ef.tar.xz linux-a130347973c408c0e0017a52c74cbc3226c1f0ef.zip | |
tools lib traceevent: Fix kbuffer_read_at_offset()
When it's called with an offset less than or equal to the first event,
it'll return a garbage value since the data is not initialized.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20161001101700.29146-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lib/traceevent/kbuffer-parse.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c index 3bcada3ae05a..65984f1c2974 100644 --- a/tools/lib/traceevent/kbuffer-parse.c +++ b/tools/lib/traceevent/kbuffer-parse.c @@ -622,6 +622,7 @@ void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, /* Reset the buffer */ kbuffer_load_subbuffer(kbuf, kbuf->subbuffer); + data = kbuffer_read_event(kbuf, ts); while (kbuf->curr < offset) { data = kbuffer_next_event(kbuf, ts); |