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perf sort: Make setup_sorting returns an error code

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Currently the setup_sorting() is called for parsing sort keys and exits
if it failed to add the sort key.  As it's included in libperf it'd be
better returning an error code rather than exiting application inside of
the library.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1360130237-9963-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2013-02-06 14:57:16 +09:00
committed by Arnaldo Carvalho de Melo
parent 51f27d1440
commit 5530998577
7 changed files with 18 additions and 10 deletions
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4
tools/perf/builtin-diff.c
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@@ -605,7 +605,9 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
ui_init();
setup_sorting(diff_usage, options);
if (setup_sorting() < 0)
usage_with_options(diff_usage, options);
setup_pager();
sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL);