1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index c1c7c427501c..c8121a6a9d3a 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -42,6 +42,7 @@
 #include <linux/usb.h>
 #include <linux/firmware.h>
 #include <linux/etherdevice.h>
+#include <linux/device.h>
 #include <net/mac80211.h>
 #include "ar9170.h"
 #include "cmd.h"
@@ -739,10 +740,10 @@ static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
 
         /* unbind anything failed */
         if (parent)
-                down(&parent->sem);
+                device_lock(parent);
         device_release_driver(&aru->udev->dev);
         if (parent)
-                up(&parent->sem);
+                device_unlock(parent);
 }
 
 static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)