parisc/power: Fix power soft-off button emulation on qemu

Make sure to start the kthread to check the power button on qemu as
well if the power button address was provided.
This fixes the qemu built-in system_powerdown runtime command.

Fixes: d0c219472980 ("parisc/power: Add power soft-off when running on qemu")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+

diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index bb0d92461b08b3796df3f2b4078987291bb2f3cf..7a6a3e7f2825be5191e024e6c7af1cd688219b75 100644 (file)
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -213,7 +213,7 @@ static int __init power_init(void)
        if (running_on_qemu && soft_power_reg)
                register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_DEFAULT,
                                        qemu_power_off, (void *)soft_power_reg);
-       else
+       if (!running_on_qemu || soft_power_reg)
                power_task = kthread_run(kpowerswd, (void*)soft_power_reg,
                                        KTHREAD_NAME);
        if (IS_ERR(power_task)) {