linux-kernel - [PATCH v2 4/5] usb: gadget: f_uvc: use bind

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Date:	Mon, 04 May 2015 14:55:14 +0200
From:	Robert Baldyga <r.baldyga@...sung.com>
To:	balbi@...com
Cc:	gregkh@...uxfoundation.org, m.szyprowski@...sung.com,
	andrzej.p@...sung.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Robert Baldyga <r.baldyga@...sung.com>
Subject: [PATCH v2 4/5] usb: gadget: f_uvc: use bind_deactivated flag

Use bind_deactivated flag instead of calling usb_function_deactivate()
in function bind().

Signed-off-by: Robert Baldyga <r.baldyga@...sung.com>
---
 drivers/usb/gadget/function/f_uvc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index cf0df8f..743be34 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -733,12 +733,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
 	uvc->control_req->complete = uvc_function_ep0_complete;
 	uvc->control_req->context = uvc;
 
-	/* Avoid letting this gadget enumerate until the userspace server is
-	 * active.
-	 */
-	if ((ret = usb_function_deactivate(f)) < 0)
-		goto error;
-
 	if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
 		printk(KERN_INFO "v4l2_device_register failed\n");
 		goto error;
@@ -949,6 +943,7 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
 	uvc->func.disable = uvc_function_disable;
 	uvc->func.setup = uvc_function_setup;
 	uvc->func.free_func = uvc_free;
+	uvc->func.bind_deactivated = true;
 
 	return &uvc->func;
 }
-- 
1.9.1

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