Commit-ID: a130347973c408c0e0017a52c74cbc3226c1f0ef Gitweb: http://git.kernel.org/tip/a130347973c408c0e0017a52c74cbc3226c1f0ef Author: Namhyung Kim <namhy...@kernel.org> AuthorDate: Sat, 1 Oct 2016 19:17:00 +0900 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 5 Oct 2016 11:36:22 -0300
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 <namhy...@kernel.org> Acked-by: Steven Rostedt <rost...@goodmis.org> Cc: Jiri Olsa <jo...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20161001101700.29146-1-namhy...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/lib/traceevent/kbuffer-parse.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c index 3bcada3..65984f1 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);
