diff options
Diffstat (limited to 'drivers/tty/serial/serial_port.c')
| -rw-r--r-- | drivers/tty/serial/serial_port.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_port.c b/drivers/tty/serial/serial_port.c index 7e3a1c7b0..66fd117d8 100644 --- a/drivers/tty/serial/serial_port.c +++ b/drivers/tty/serial/serial_port.c @@ -63,6 +63,13 @@ static int serial_port_runtime_suspend(struct device *dev) if (port->flags & UPF_DEAD) return 0; + /* + * Nothing to do on pm_runtime_force_suspend(), see + * DEFINE_RUNTIME_DEV_PM_OPS. + */ + if (!pm_runtime_enabled(dev)) + return 0; + uart_port_lock_irqsave(port, &flags); if (!port_dev->tx_enabled) { uart_port_unlock_irqrestore(port, flags); |