linux-kernel - Re: [PATCH] media: Fix compilation error

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Date:   Wed, 7 Apr 2021 15:29:33 +0200
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Bixuan Cui <cuibixuan@...wei.com>, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Cc:     thierry.reding@...il.com, jonathanh@...dia.com,
        skomatineni@...dia.com, mchehab@...nel.org, treding@...dia.com,
        mperttunen@...dia.com, john.wanghui@...wei.com
Subject: Re: [PATCH] media: Fix compilation error

On 02/04/2021 09:40, Bixuan Cui wrote:
> Fix the error:
> 
> drivers/staging/media/tegra-video/vi.c:1180:4:
> error: implicit declaration of function 'host1x_syncpt_free' [-Werror,-Wimplicit-function-declaration]

Against what tree is this being built? The mainline kernel doesn't have
host1x_syncpt_put, only host1x_syncpt_free.

Also, the subject line is very vague, something like this is much more descriptive:

[PATCH] media: tegra-video: replace host1x_syncpt_free by host1x_syncpt_put

Regards,

	Hans

> 
> Fixes: 3028a00c55bf ('gpu: host1x: Cleanup and refcounting for syncpoints')
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Bixuan Cui <cuibixuan@...wei.com>
> ---
>  drivers/staging/media/tegra-video/vi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
> index 7e0cb5529b49..df5ca3596470 100644
> --- a/drivers/staging/media/tegra-video/vi.c
> +++ b/drivers/staging/media/tegra-video/vi.c
> @@ -1177,7 +1177,7 @@ static int tegra_channel_host1x_syncpt_init(struct tegra_vi_channel *chan)
>  		mw_sp = host1x_syncpt_request(&vi->client, flags);
>  		if (!mw_sp) {
>  			dev_err(vi->dev, "failed to request memory ack syncpoint\n");
> -			host1x_syncpt_free(fs_sp);
> +			host1x_syncpt_put(fs_sp);
>  			ret = -ENOMEM;
>  			goto free_syncpts;
>  		}
>