linux-kernel - Re: [PATCH v1 1/3] media: staging: tegra-vde: Support reference picture marking

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Message-ID: <89166c20-6b05-ed4b-ed45-451f4f1e10bc@gmail.com>
Date:   Wed, 17 Nov 2021 19:19:30 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Anton Bambura <jenneron@...tonmail.com>,
        Hans Verkuil <hverkuil@...all.nl>, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/3] media: staging: tegra-vde: Support reference
 picture marking

15.11.2021 18:48, Dan Carpenter пишет:
> On Mon, Nov 15, 2021 at 05:34:47PM +0300, Dmitry Osipenko wrote:
>> 15.11.2021 15:44, Dan Carpenter пишет:
>>> On Mon, Nov 15, 2021 at 01:34:18AM +0300, Dmitry Osipenko wrote:
>>>> 15.11.2021 01:23, Dmitry Osipenko пишет:
>>>>> +	vde->secure_bo = tegra_vde_alloc_bo(vde, DMA_FROM_DEVICE, 4096);
>>>>> +	if (!vde->secure_bo) {
>>>>> +		dev_err(dev, "Failed to allocate secure BO\n");
>>>>> +		goto err_pm_runtime;
>>>>> +	}
>>>>
>>>> My eye just caught that by accident err variable isn't assigned to
>>>> -ENOMEM here. I'll make v2 shortly.
>>>
>>> Smatch has a check for this so we would have caught it.  :)
>>
>> Whish smatch was built-in into kernel and I could simply run "make
>> smatch". On the other hand, I know that you're periodically checking
>> upstream with smatch and patching the found bugs, so maybe it's fine
>> as-is.
> 
> I run it every day, and it's integrated into the zero day bot and Mauro
> runs it.  So someone would have caught it.

Very nice, I haven't noticed that 0-day runs smatch. I assume the smatch
reports from the bots are private to you and Mauro since I never saw
them in my inbox and on LKML, correct?