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Subject: Re: [PATCH v2 4/4] drm/bridge: ti-sn65dsi86: Check the regmap return value when setting a GPIO
From:   Stephen Boyd <swboyd@chromium.org>
Cc:     spanda@codeaurora.org, bjorn.andersson@linaro.org,
        robdclark@chromium.org, Douglas Anderson <dianders@chromium.org>,
        Daniel Vetter <daniel@ffwll.ch>,
        David Airlie <airlied@linux.ie>,
        Jernej Skrabec <jernej.skrabec@siol.net>,
        Jonas Karlman <jonas@kwiboo.se>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
To:     Douglas Anderson <dianders@chromium.org>, a.hajda@samsung.com,
        narmstrong@baylibre.com, sam@ravnborg.org
Date:   Fri, 12 Jun 2020 14:28:26 -0700
Message-ID: <159199730620.62212.13255273805624622339@swboyd.mtv.corp.google.com>
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Quoting Douglas Anderson (2020-06-12 12:30:50)
> The ti_sn_bridge_gpio_set() got the return value of
> regmap_update_bits() but didn't check it.  The function can't return
> an error value, but we should at least print a warning if it didn't
> work.
>=20
> This fixes a compiler warning about setting "ret" but not using it.
>=20
> Fixes: 27ed2b3f22ed ("drm/bridge: ti-sn65dsi86: Export bridge GPIOs to Li=
nux")
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>