qdev: Rename USBDevice member devname to product_desc

It's not a device name, it's the USB product description string.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/usb-bus.c b/hw/usb-bus.c
index 99d185e..ba1b6e3 100644
--- a/hw/usb-bus.c
+++ b/hw/usb-bus.c
@@ -43,7 +43,7 @@
     USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base);
     int rc;
 
-    pstrcpy(dev->devname, sizeof(dev->devname), qdev->info->name);
+    pstrcpy(dev->product_desc, sizeof(dev->product_desc), qdev->info->name);
     dev->info = info;
     dev->auto_attach = 1;
     rc = dev->info->init(dev);
@@ -131,7 +131,7 @@
 
     if (dev->attached) {
         fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
-                dev->devname);
+                dev->product_desc);
         return;
     }
     dev->attached++;
@@ -166,7 +166,7 @@
 
     if (!dev->attached) {
         fprintf(stderr, "Warning: tried to detach unattached usb device %s\n",
-                dev->devname);
+                dev->product_desc);
         return -1;
     }
     dev->attached--;
@@ -228,7 +228,7 @@
 
     monitor_printf(mon, "%*saddr %d.%d, speed %s, name %s%s\n",
                    indent, "", bus->busnr, dev->addr,
-                   usb_speed(dev->speed), dev->devname,
+                   usb_speed(dev->speed), dev->product_desc,
                    dev->attached ? ", attached" : "");
 }
 
@@ -249,7 +249,8 @@
             if (!dev)
                 continue;
             monitor_printf(mon, "  Device %d.%d, Speed %s Mb/s, Product %s\n",
-                           bus->busnr, dev->addr, usb_speed(dev->speed), dev->devname);
+                           bus->busnr, dev->addr, usb_speed(dev->speed),
+                           dev->product_desc);
         }
     }
 }