From 5ed08dae9d2f2307c103e2dce94d801e74aefae4 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 22 Jan 2015 11:08:04 -0300 Subject: [PATCH] perf trace: Fix error reporting for evsel pgfault constructor In that case the only failure possible is not to have enough memory, as we are just creating the evsels, not trying to access any system facility such as debugfs files or syscalls. Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Don Zickus Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-7k6asvfhiwiu2zs6o2oknchk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 684609d..eaaa540 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2063,18 +2063,12 @@ static int trace__run(struct trace *trace, int argc, const char **argv) if ((trace->trace_pgfaults & TRACE_PFMAJ) && perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) { - /* - * FIXME: This one needs better error handling, as by now we - * already checked that debugfs is mounted and that we have access to it, - * so probably the case is that something is busted wrt this specific - * software event, ditto for the next gotos to out_error_tp... - */ - goto out_error_tp; + goto out_error_mem; } if ((trace->trace_pgfaults & TRACE_PFMIN) && perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN)) - goto out_error_tp; + goto out_error_mem; if (trace->sched && perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", @@ -2225,6 +2219,9 @@ out_error: fprintf(trace->output, "%s\n", errbuf); goto out_delete_evlist; } +out_error_mem: + fprintf(trace->output, "Not enough memory to run!\n"); + goto out_delete_evlist; } static int trace__replay(struct trace *trace) -- 2.7.4