1 files changed, 13 insertions, 15 deletions

diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c
index 7275706caeb0..bb39cb2bb3a3 100644
--- a/drivers/usb/gadget/f_loopback.c
+++ b/drivers/usb/gadget/f_loopback.c
@@ -177,6 +177,7 @@ loopback_bind(struct usb_configuration *c, struct usb_function *f)
         struct usb_composite_dev *cdev = c->cdev;
         struct f_loopback       *loop = func_to_loop(f);
         int                     id;
+        int ret;
 
         /* allocate interface ID(s) */
         id = usb_interface_id(c, f);
@@ -201,22 +202,19 @@ autoconf_fail:
         loop->out_ep->driver_data = cdev;       /* claim */
 
         /* support high speed hardware */
-        if (gadget_is_dualspeed(c->cdev->gadget)) {
-                hs_loop_source_desc.bEndpointAddress =
-                                fs_loop_source_desc.bEndpointAddress;
-                hs_loop_sink_desc.bEndpointAddress =
-                                fs_loop_sink_desc.bEndpointAddress;
-                f->hs_descriptors = hs_loopback_descs;
-        }
+        hs_loop_source_desc.bEndpointAddress =
+                fs_loop_source_desc.bEndpointAddress;
+        hs_loop_sink_desc.bEndpointAddress = fs_loop_sink_desc.bEndpointAddress;
 
         /* support super speed hardware */
-        if (gadget_is_superspeed(c->cdev->gadget)) {
-                ss_loop_source_desc.bEndpointAddress =
-                                fs_loop_source_desc.bEndpointAddress;
-                ss_loop_sink_desc.bEndpointAddress =
-                                fs_loop_sink_desc.bEndpointAddress;
-                f->ss_descriptors = ss_loopback_descs;
-        }
+        ss_loop_source_desc.bEndpointAddress =
+                fs_loop_source_desc.bEndpointAddress;
+        ss_loop_sink_desc.bEndpointAddress = fs_loop_sink_desc.bEndpointAddress;
+
+        ret = usb_assign_descriptors(f, fs_loopback_descs, hs_loopback_descs,
+                        ss_loopback_descs);
+        if (ret)
+                return ret;
 
         DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n",
             (gadget_is_superspeed(c->cdev->gadget) ? "super" :
@@ -228,6 +226,7 @@ autoconf_fail:
 static void
 loopback_unbind(struct usb_configuration *c, struct usb_function *f)
 {
+        usb_free_all_descriptors(f);
         kfree(func_to_loop(f));
 }
 
@@ -379,7 +378,6 @@ static int __init loopback_bind_config(struct usb_configuration *c)
                 return -ENOMEM;
 
         loop->function.name = "loopback";
-        loop->function.descriptors = fs_loopback_descs;
         loop->function.bind = loopback_bind;
         loop->function.unbind = loopback_unbind;
         loop->function.set_alt = loopback_set_alt;