[PATCH] perf buildid-list: Fix return value of perf buildid-list -k

[Michael Petlan]

The buildid string length is returned by perf buildid-list -k command.
Since a non-zero return value means an error, perf buildid-list -k cmd
should return 0 when successful instead.

Before:

        # perf buildid-list -k
        39356d74e96e02346fe0ec1f3f162b6c522bac62
        # echo $?
        41

After:

        # perf buildid-list -k
        39356d74e96e02346fe0ec1f3f162b6c522bac62
        # echo $?
        0

Signed-off-by: Michael Petlan <mpet...@redhat.com>
---
 tools/perf/builtin-buildid-list.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-buildid-list.c 
b/tools/perf/builtin-buildid-list.c
index 918b4de..6419f57 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -110,7 +110,7 @@ int cmd_buildid_list(int argc, const char **argv,
        setup_pager();
 
        if (show_kernel)
-               return sysfs__fprintf_build_id(stdout);
+               return !(sysfs__fprintf_build_id(stdout) > 0);
 
        return perf_session__list_build_ids(force, with_hits);
 }


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