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[DeviceDrivers] uart configure issue.

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uart configure shall not been performed if uart is not open.
This commit is contained in:
Bernard Xiong 2016-06-13 13:31:13 +08:00
parent 45c7f03035
commit 99481cd0ac
1 changed files with 12 additions and 2 deletions
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14
components/drivers/serial/serial.c
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@ -603,8 +603,18 @@ static rt_err_t rt_serial_control(struct rt_device *dev,
break;
case RT_DEVICE_CTRL_CONFIG:
/* configure device */
serial->ops->configure(serial, (struct serial_configure *)args);
if (args)
{
/* set serial configure */
serial->config = *(struct serial_configure *)args;
if (dev->ref_count)
{
/* serial device has been opened, to configure it */
serial->ops->configure(serial, (struct serial_configure *)args);
}
}
break;
default :