diff --git a/lichee/linux-4.9/drivers/misc/xunfei/cpld/cx20810.c b/lichee/linux-4.9/drivers/misc/xunfei/cpld/cx20810.c
index 5c9db8123..98b65e7eb 100755
--- a/lichee/linux-4.9/drivers/misc/xunfei/cpld/cx20810.c
+++ b/lichee/linux-4.9/drivers/misc/xunfei/cpld/cx20810.c
@@ -286,7 +286,6 @@ static int __init cpld_r311_probe(struct platform_device *pdev) {
     if (gpio_is_valid(gpionum)) {
         gpio_request(gpionum, "3v_ldo_en");
         gpio_direction_output(gpionum, 1);
-	gpio_free(gpionum);
         printk("Set 3v_ldo_en(%d) success\n", gpionum);
     } else {
         printk("Set 3v_ldo_en fail\n");
diff --git a/lichee/linux-4.9/drivers/tty/serial/sunxi-uart.c b/lichee/linux-4.9/drivers/tty/serial/sunxi-uart.c
old mode 100644
new mode 100755
index 51a31dbd5..fbb529ad6
--- a/lichee/linux-4.9/drivers/tty/serial/sunxi-uart.c
+++ b/lichee/linux-4.9/drivers/tty/serial/sunxi-uart.c
@@ -225,6 +225,8 @@ static unsigned int sw_uart_handle_rx(struct sw_uart_port *sw_uport, unsigned in
 				 */
 				if (uart_handle_break(&sw_uport->port))
 					goto ignore_char;
+				if (lsr & SUNXI_UART_LSR_RXFIFOE)
+					goto ignore_char;
 			} else if (lsr & SUNXI_UART_LSR_PE)
 				sw_uport->port.icount.parity++;
 			else if (lsr & SUNXI_UART_LSR_FE)
@@ -1150,12 +1152,22 @@ static void sw_uart_set_termios(struct uart_port *port, struct ktermios *termios
 	sw_uport->fcr = SUNXI_UART_FCR_RXTRG_1_2 | SUNXI_UART_FCR_TXTRG_1_2
 			| SUNXI_UART_FCR_FIFO_EN;
 	serial_out(port, sw_uport->fcr, SUNXI_UART_FCR);
+	
+	/*
+	 * if lcr & baud are changed, reset controller to disable transfer
+	 */
+	if (lcr != sw_uport->lcr || dll != sw_uport->dll || dlh != sw_uport->dlh) {
+		/*SERIAL_DBG("LCR & BAUD changed, reset controller...\n");*/
+		sw_uart_reset(sw_uport);
+	}
 
 	sw_uport->lcr = lcr;
 	sw_uport->dll = dll;
 	sw_uport->dlh = dlh;
 	sw_uart_force_lcr(sw_uport, 50);
 
+	/* clear rxfifo after set lcr & baud to discard redundant data */
+	serial_out(port, sw_uport->fcr|SUNXI_UART_FCR_RXFIFO_RST, SUNXI_UART_FCR);
 	port->ops->set_mctrl(port, port->mctrl);
 
 	sw_uport->ier = SUNXI_UART_IER_RLSI | SUNXI_UART_IER_RDI;
diff --git a/package/netease/submodules b/package/netease/submodules
index d2c397aa2..cbf96ef8d 160000
--- a/package/netease/submodules
+++ b/package/netease/submodules
@@ -1 +1 @@
-Subproject commit d2c397aa21c5fccf9a621f893ca8441c450e893b
+Subproject commit cbf96ef8d15ebcc710d6f50c67c58484d3de9e3b