Commit a1303479 authored Oct 01, 2016 by Namhyung Kim Committed by Arnaldo Carvalho de Melo Oct 05, 2016

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>

parent 3bccbe20

tools/lib/traceevent/kbuffer-parse.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);