diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/serial_base_bus.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c index 1b37833b8f66..9354af7c11af 100644 --- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -17,6 +17,8 @@ #include "serial_base.h" +static bool serial_base_initialized; + static int serial_base_match(struct device *dev, struct device_driver *drv) { int len = strlen(drv->name); @@ -48,6 +50,11 @@ static int serial_base_device_init(struct uart_port *port, void (*release)(struct device *dev), int id) { + if (!serial_base_initialized) { + dev_err(port->dev, "uart_add_one_port() called before arch_initcall()?\n"); + return -EPROBE_DEFER; + } + device_initialize(dev); dev->type = type; dev->parent = parent_dev; @@ -175,6 +182,8 @@ static int serial_base_init(void) if (ret) goto err_ctrl_exit; + serial_base_initialized = true; + return 0; err_ctrl_exit: @@ -185,7 +194,7 @@ err_bus_unregister: return ret; } -module_init(serial_base_init); +arch_initcall(serial_base_init); static void serial_base_exit(void) { |