perf report: Fix segmentation fault when running with '-g none'

Segmentation fault occurs when running perf report with '-g
none'.

Reported-by: Austin Zhang <austin.zhang@intel.com>
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100122014750.GA4111@ywang-moblin2.bj.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index db10c0e..860f1ee 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -269,7 +269,7 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
 
        else if (!strncmp(tok, "none", strlen(arg))) {
                callchain_param.mode = CHAIN_NONE;
-               symbol_conf.use_callchain = true;
+               symbol_conf.use_callchain = false;
 
                return 0;
        }