linux-kernel - Re: [PATCH v3] media: staging: ipu3-imgu: Set fields before media_entity_pads

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Date: Tue, 9 Jan 2024 11:12:59 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Hidenori Kobayashi <hidenorik@...omium.org>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Bingbu Cao <bingbu.cao@...el.com>,
	Tianshu Qiu <tian.shu.qiu@...el.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Yong Zhi <yong.zhi@...el.com>, stable@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
	linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] media: staging: ipu3-imgu: Set fields before
 media_entity_pads_init()

On Tue, Jan 09, 2024 at 05:09:09PM +0900, Hidenori Kobayashi wrote:
> The imgu driver fails to probe with the following message because it
> does not set the pad's flags before calling media_entity_pads_init().
> 
> [   14.596315] ipu3-imgu 0000:00:05.0: failed initialize subdev media entity (-22)
> [   14.596322] ipu3-imgu 0000:00:05.0: failed to register subdev0 ret (-22)
> [   14.596327] ipu3-imgu 0000:00:05.0: failed to register pipes (-22)
> [   14.596331] ipu3-imgu 0000:00:05.0: failed to create V4L2 devices (-22)
> 
> Fix the initialization order so that the driver probe succeeds. The ops
> initialization is also moved together for readability.
> 
> Fixes: a0ca1627b450 ("media: staging/intel-ipu3: Add v4l2 driver based on media framework")
> Cc: <stable@...r.kernel.org> # 6.7
> Cc: Dan Carpenter <dan.carpenter@...aro.org>
> Signed-off-by: Hidenori Kobayashi <hidenorik@...omium.org>
> ---

Thanks so much!

regards,
dan carpenter