linux-kernel - Re: [PATCH v2 4/5] fpga manager: xilinx-spi: add error checking after gpiod_get

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Message-ID: <e0ce7edb-53dd-2961-278d-e9bc8a1726ac@redhat.com>
Date:   Thu, 27 Aug 2020 12:04:23 -0700
From:   Tom Rix <trix@...hat.com>
To:     Luca Ceresoli <luca@...aceresoli.net>, linux-fpga@...r.kernel.org
Cc:     Moritz Fischer <mdf@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Anatolij Gustschin <agust@...x.de>
Subject: Re: [PATCH v2 4/5] fpga manager: xilinx-spi: add error checking after
 gpiod_get_value()


On 8/27/20 7:32 AM, Luca Ceresoli wrote:
> Current code calls gpiod_get_value() without error checking. Should the
> GPIO controller fail, execution would continue without any error message.
>
> Fix by checking for negative error values.
>
> Reported-by: Tom Rix <trix@...hat.com>
> Signed-off-by: Luca Ceresoli <luca@...aceresoli.net>
>
> ---

Thanks, this looks fine.

Reviewed-by: Tom Rix <trix@...hat.com>