Do not try to display entry details if there's not any. Currently this ends up in crash: $ perf c2c report perf: Segmentation fault
Reported-by: ro...@autistici.org Link: http://lkml.kernel.org/n/tip-3d7qjz9x49ay9ncerford...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/builtin-c2c.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index f2ea85ee573f..f3aa9d02a5ab 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2349,6 +2349,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he) " s Toggle full length of symbol and source line columns \n" " q Return back to cacheline list \n"; + if (!he) + return 0; + /* Display compact version first. */ c2c.symbol_full = false; -- 2.17.1
