diff --git a/lichee/linux-4.9/drivers/net/wireless/xr806/hwio.c b/lichee/linux-4.9/drivers/net/wireless/xr806/hwio.c
index 0c02b44ff..7d7a9b090 100644
--- a/lichee/linux-4.9/drivers/net/wireless/xr806/hwio.c
+++ b/lichee/linux-4.9/drivers/net/wireless/xr806/hwio.c
@@ -98,6 +98,7 @@ int xradio_hwio_write(struct sk_buff *skb)
 	}
 
 	// wait dev enter read state(gpio == 1)
+	delay = jiffies + IO_WAIT_TIME_S * HZ;
 	while (!ops->read_rw_gpio()) {
 		if (time_after(jiffies, delay)) {
 			hwio_printk(XRADIO_DBG_ERROR, "write data wait dev read state faild\n");