queue-4.14/tools-power-turbostat-return-the-exit-status-of-a-co.patch

   1 From b1f7e6bbf8a07fa7cb79a310819edd3da8a7193f Mon Sep 17 00:00:00 2001
   2 From: David Arcari <darcari@redhat.com>
   3 Date: Tue, 12 Feb 2019 09:34:39 -0500
   4 Subject: tools/power turbostat: return the exit status of a command
   5
   6 [ Upstream commit 2a95496634a017c19641f26f00907af75b962f01 ]
   7
   8 turbostat failed to return a non-zero exit status even though the
   9 supplied command (turbostat <command>) failed.  Currently when turbostat
  10 forks a command it returns zero instead of the actual exit status of the
  11 command.  Modify the code to return the exit status.
  12
  13 Signed-off-by: David Arcari <darcari@redhat.com>
  14 Acked-by: Len Brown <len.brown@intel.com>
  15 Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
  16 Signed-off-by: Sasha Levin <sashal@kernel.org>
  17 ---
  18  tools/power/x86/turbostat/turbostat.c | 3 +++
  19  1 file changed, 3 insertions(+)
  20
  21 diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
  22 index 7a1b20ec5216..d1b2348db0f9 100644
  23 --- a/tools/power/x86/turbostat/turbostat.c
  24 +++ b/tools/power/x86/turbostat/turbostat.c
  25 @@ -4588,6 +4588,9 @@ int fork_it(char **argv)
  26                 signal(SIGQUIT, SIG_IGN);
  27                 if (waitpid(child_pid, &status, 0) == -1)
  28                         err(status, "waitpid");
  29 +
  30 +               if (WIFEXITED(status))
  31 +                       status = WEXITSTATUS(status);
  32         }
  33         /*
  34          * n.b. fork_it() does not check for errors from for_all_cpus()
  35 --
  36 2.19.1
  37