1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c b/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c
index 78df281b297..a09819386a1 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c
@@ -88,9 +88,15 @@ static void rtl8225_write_8051(struct ieee80211_hw *dev, u8 addr, __le16 data)
         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80);
         udelay(10);
 
+        mutex_lock(&priv->io_mutex);
+
+        priv->io_dmabuf->bits16 = data;
         usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
                         RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
-                        addr, 0x8225, &data, sizeof(data), HZ / 2);
+                        addr, 0x8225, &priv->io_dmabuf->bits16, sizeof(data),
+                        HZ / 2);
+
+        mutex_unlock(&priv->io_mutex);
 
         rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
         udelay(10);