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tools/power turbostat: return the exit status of a command

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turbostat failed to return a non-zero exit status even though the
supplied command (turbostat <command>) failed.  Currently when turbostat
forks a command it returns zero instead of the actual exit status of the
command.  Modify the code to return the exit status.

Signed-off-by: David Arcari <darcari@redhat.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
David Arcari 2019-02-12 09:34:39 -05:00 committed by Rafael J. Wysocki
parent 9e98c678c2
commit 2a95496634
1 changed files with 3 additions and 0 deletions
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tools/power/x86/turbostat/turbostat.c
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@ -5077,6 +5077,9 @@ int fork_it(char **argv)
signal(SIGQUIT, SIG_IGN);
if (waitpid(child_pid, &status, 0) == -1)
err(status, "waitpid");
if (WIFEXITED(status))
status = WEXITSTATUS(status);
}
/*
* n.b. fork_it() does not check for errors from for_all_cpus()