usb: gadget: f_hid: use alloc_ep_req()

Use gadget's framework allocation function instead of directly calling
usb_ep_alloc_request().

Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index aa1c199..e2966f8 100644 (file)
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -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;