1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
index 1533f56baa42..2700c5c45b8a 100644
--- a/drivers/char/watchdog/pcwd_usb.c
+++ b/drivers/char/watchdog/pcwd_usb.c
@@ -42,6 +42,7 @@
 #include <linux/completion.h>
 #include <asm/uaccess.h>
 #include <linux/usb.h>
+#include <linux/mutex.h>
 
 
 #ifdef CONFIG_USB_DEBUG
@@ -143,7 +144,7 @@ struct usb_pcwd_private {
 static struct usb_pcwd_private *usb_pcwd_device;
 
 /* prevent races between open() and disconnect() */
-static DECLARE_MUTEX (disconnect_sem);
+static DEFINE_MUTEX(disconnect_mutex);
 
 /* local function prototypes */
 static int usb_pcwd_probe       (struct usb_interface *interface, const struct usb_device_id *id);
@@ -723,7 +724,7 @@ static void usb_pcwd_disconnect(struct usb_interface *interface)
         struct usb_pcwd_private *usb_pcwd;
 
         /* prevent races with open() */
-        down (&disconnect_sem);
+        mutex_lock(&disconnect_mutex);
 
         usb_pcwd = usb_get_intfdata (interface);
         usb_set_intfdata (interface, NULL);
@@ -749,7 +750,7 @@ static void usb_pcwd_disconnect(struct usb_interface *interface)
 
         cards_found--;
 
-        up (&disconnect_sem);
+        mutex_unlock(&disconnect_mutex);
 
         printk(KERN_INFO PFX "USB PC Watchdog disconnected\n");
 }