From 4d40b051b1ac41ecbc818deed27750b4c1697520 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 14 Jul 2014 13:02:35 +0300 Subject: [PATCH] perf callchain: Fix appending a callchain from a previous sample hist_entry__append_callchain() must check if the sample has a callcahin or it will append the callchain from a previous sample. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1405332185-4050-12-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/callchain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 48b6d3f..437ee09 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -626,7 +626,7 @@ int sample__resolve_callchain(struct perf_sample *sample, struct symbol **parent int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample) { - if (!symbol_conf.use_callchain) + if (!symbol_conf.use_callchain || sample->callchain == NULL) return 0; return callchain_append(he->callchain, &callchain_cursor, sample->period); } -- 2.7.4