scftorture: Shut down if nonsensical arguments given

If (say) a 10-hour scftorture run is started, but the module parameters
are so nonsensical that the run doesn't even start, then scftorture will
wait the full ten hours when run built into a guest OS.  This commit
therefore shuts down the system in this case so that the error is reported
immediately instead of ten hours hence.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/kernel/scftorture.c b/kernel/scftorture.c
index bc3f8e2..31b458b 100644 (file)
--- a/kernel/scftorture.c
+++ b/kernel/scftorture.c
@@ -651,6 +651,10 @@ static int __init scf_torture_init(void)
 unwind:
        torture_init_end();
        scf_torture_cleanup();
+       if (shutdown_secs) {
+               WARN_ON(!IS_MODULE(CONFIG_SCF_TORTURE_TEST));
+               kernel_power_off();
+       }
        return firsterr;
 }