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

[ Upstream commit 2a95496 ] 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 <[email protected]> Acked-by: Len Brown <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
arter97 · Apr 27, 2019 · 63e03ef · 63e03ef
1 parent 3a3e675
commit 63e03ef
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
@@ -3089,6 +3089,9 @@ 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()