perf jevents: Free the sys_event_tables list after processing entries

The compiler reports that free_sys_event_tables() is dead code.

But according to the semantics, the "LIST_HEAD(sys_event_tables)" should
also be released, just like we do with 'arch_std_events' in main().

Fixes: 32ccb717bdc87c0d ("perf vendor events: Add support for arch standard events")
Signed-off-by: Like Xu <likexu@tencent.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210928102938.69681-1-likexu@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 6731b3cf0c2fc9b7c353f582c06fb186dfb847f4..7c887d37b893466ae84fa7d82c646cd1c63f0192 100644 (file)
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -1285,6 +1285,7 @@ int main(int argc, char *argv[])
        }
 
        free_arch_std_events();
+       free_sys_event_tables();
        free(mapfile);
        return 0;
 
@@ -1306,6 +1307,7 @@ err_close_eventsfp:
                create_empty_mapping(output_file);
 err_out:
        free_arch_std_events();
+       free_sys_event_tables();
        free(mapfile);
        return ret;
 }