1 files changed, 15 insertions, 13 deletions

diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index 51980c50546d..e2966f87c860 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -365,7 +365,7 @@ static int f_hidg_open(struct inode *inode, struct file *fd)
 static inline struct usb_request *hidg_alloc_ep_req(struct usb_ep *ep,
 						    unsigned length)
 {
-	return alloc_ep_req(ep, length, length);
+	return alloc_ep_req(ep, length);
 }
 
 static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req)
@@ -617,14 +617,10 @@ static int hidg_bind(struct usb_configuration *c, struct usb_function *f)
 
 	/* preallocate request and buffer */
 	status = -ENOMEM;
-	hidg->req = usb_ep_alloc_request(hidg->in_ep, GFP_KERNEL);
+	hidg->req = alloc_ep_req(hidg->in_ep, hidg->report_length);
 	if (!hidg->req)
 		goto fail;
 
-	hidg->req->buf = kmalloc(hidg->report_length, GFP_KERNEL);
-	if (!hidg->req->buf)
-		goto fail;
-
 	/* set descriptor dynamic values */
 	hidg_interface_desc.bInterfaceSubClass = hidg->bInterfaceSubClass;
 	hidg_interface_desc.bInterfaceProtocol = hidg->bInterfaceProtocol;
@@ -677,11 +673,8 @@ fail_free_descs:
 	usb_free_all_descriptors(f);
 fail:
 	ERROR(f->config->cdev, "hidg_bind FAILED\n");
-	if (hidg->req != NULL) {
-		kfree(hidg->req->buf);
-		if (hidg->in_ep != NULL)
-			usb_ep_free_request(hidg->in_ep, hidg->req);
-	}
+	if (hidg->req != NULL)
+		free_ep_req(hidg->in_ep, hidg->req);
 
 	return status;
 }
@@ -809,11 +802,21 @@ end:
 
 CONFIGFS_ATTR(f_hid_opts_, report_desc);
 
+static ssize_t f_hid_opts_dev_show(struct config_item *item, char *page)
+{
+	struct f_hid_opts *opts = to_f_hid_opts(item);
+
+	return sprintf(page, "%d:%d\n", major, opts->minor);
+}
+
+CONFIGFS_ATTR_RO(f_hid_opts_, dev);
+
 static struct configfs_attribute *hid_attrs[] = {
 	&f_hid_opts_attr_subclass,
 	&f_hid_opts_attr_protocol,
 	&f_hid_opts_attr_report_length,
 	&f_hid_opts_attr_report_desc,
+	&f_hid_opts_attr_dev,
 	NULL,
 };
 
@@ -910,8 +913,7 @@ static void hidg_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	/* disable/free request and end point */
 	usb_ep_disable(hidg->in_ep);
-	kfree(hidg->req->buf);
-	usb_ep_free_request(hidg->in_ep, hidg->req);
+	free_ep_req(hidg->in_ep, hidg->req);
 
 	usb_free_all_descriptors(f);
 }