USB: mon_main.c: move assignment out of if () block

We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>

drivers/usb/mon/mon_main.c

@@ -96,7 +96,8 @@ static void mon_submit(struct usb_bus *ubus, struct urb *urb)
 {
 	struct mon_bus *mbus;
 
-	if ((mbus = ubus->mon_bus) != NULL)
+	mbus = ubus->mon_bus;
+	if (mbus != NULL)
 		mon_bus_submit(mbus, urb);
 	mon_bus_submit(&mon_bus0, urb);
 }
@@ -122,7 +123,8 @@ static void mon_submit_error(struct usb_bus *ubus, struct urb *urb, int error)
 {
 	struct mon_bus *mbus;
 
-	if ((mbus = ubus->mon_bus) != NULL)
+	mbus = ubus->mon_bus;
+	if (mbus != NULL)
 		mon_bus_submit_error(mbus, urb, error);
 	mon_bus_submit_error(&mon_bus0, urb, error);
 }
@@ -148,7 +150,8 @@ static void mon_complete(struct usb_bus *ubus, struct urb *urb, int status)
 {
 	struct mon_bus *mbus;
 
-	if ((mbus = ubus->mon_bus) != NULL)
+	mbus = ubus->mon_bus;
+	if (mbus != NULL)
 		mon_bus_complete(mbus, urb, status);
 	mon_bus_complete(&mon_bus0, urb, status);
 }
@@ -280,7 +283,8 @@ static void mon_bus_init(struct usb_bus *ubus)
 {
 	struct mon_bus *mbus;
 
-	if ((mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL)
+	mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL);
+	if (mbus == NULL)
 		goto err_alloc;
 	kref_init(&mbus->ref);
 	spin_lock_init(&mbus->lock);