linux-kernel - Re: [PATCH v3 2/3] media: uvcvideo: Refactor the status irq API

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Date: Tue, 26 Mar 2024 17:42:17 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Ricardo Ribalda <ribalda@...omium.org>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Max Staudt <mstaudt@...omium.org>, Tomasz Figa <tfiga@...omium.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Hans Verkuil <hverkuil-cisco@...all.nl>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	Sean Paul <seanpaul@...omium.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>
Subject: Re: [PATCH v3 2/3] media: uvcvideo: Refactor the status irq API

On (24/03/25 16:31), Ricardo Ribalda wrote:
>  drivers/media/usb/uvc/uvc_driver.c | 13 ++-------
>  drivers/media/usb/uvc/uvc_status.c | 57 ++++++++++++++++++++++++++++++++++++--
>  drivers/media/usb/uvc/uvc_v4l2.c   | 22 ++++-----------
>  drivers/media/usb/uvc/uvcvideo.h   | 10 ++++---
>  4 files changed, 68 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
> index 17fc945c8deb6..b579644ac0745 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -2116,7 +2116,6 @@ static int uvc_probe(struct usb_interface *intf,
>  	INIT_LIST_HEAD(&dev->streams);
>  	kref_init(&dev->ref);
>  	atomic_set(&dev->nmappings, 0);
> -	mutex_init(&dev->lock);

Where is this getting initialized?