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([2001:861:44c0:66c0:7c9d:a967:38e2:5220]) by smtp.gmail.com with ESMTPSA id b2sm38209160wrd.35.2022.01.03.03.22.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Jan 2022 03:22:27 -0800 (PST) Subject: Re: [PATCH 2/2] drm/meson: Fix error handling when afbcd.ops->init fails To: Martin Blumenstingl , linux-amlogic@lists.infradead.org Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20211230235515.1627522-1-martin.blumenstingl@googlemail.com> <20211230235515.1627522-3-martin.blumenstingl@googlemail.com> From: Neil Armstrong Organization: Baylibre Message-ID: <386f5be4-eca0-6117-82f5-317b82ee66a7@baylibre.com> Date: Mon, 3 Jan 2022 12:22:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20211230235515.1627522-3-martin.blumenstingl@googlemail.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220103_032230_143933_9DC8CABF X-CRM114-Status: GOOD ( 19.55 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 31/12/2021 00:55, Martin Blumenstingl wrote: > When afbcd.ops->init fails we need to free the struct drm_device. Also > all errors which come after afbcd.ops->init was successful need to exit > the AFBCD, just like meson_drv_unbind() does. > > Fixes: d1b5e41e13a7e9 ("drm/meson: Add AFBCD module driver") > Signed-off-by: Martin Blumenstingl > --- > drivers/gpu/drm/meson/meson_drv.c | 19 +++++++++++-------- > 1 file changed, 11 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c > index b919271a6e50..26aeaf0ab86e 100644 > --- a/drivers/gpu/drm/meson/meson_drv.c > +++ b/drivers/gpu/drm/meson/meson_drv.c > @@ -302,42 +302,42 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) > if (priv->afbcd.ops) { > ret = priv->afbcd.ops->init(priv); > if (ret) > - return ret; > + goto free_drm; > } > > /* Encoder Initialization */ > > ret = meson_encoder_cvbs_init(priv); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > if (has_components) { > ret = component_bind_all(drm->dev, drm); > if (ret) { > dev_err(drm->dev, "Couldn't bind all components\n"); > - goto free_drm; > + goto exit_afbcd; > } > } > > ret = meson_encoder_hdmi_init(priv); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > ret = meson_plane_create(priv); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > ret = meson_overlay_create(priv); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > ret = meson_crtc_create(priv); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm); > if (ret) > - goto free_drm; > + goto exit_afbcd; > > drm_mode_config_reset(drm); > > @@ -355,6 +355,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) > > uninstall_irq: > free_irq(priv->vsync_irq, drm); > +exit_afbcd: > + if (priv->afbcd.ops) > + priv->afbcd.ops->exit(priv); > free_drm: > drm_dev_put(drm); > > Acked-by: Neil Armstrong Thanks, But this depends on patch 1, so I'll add the same Fixes tag on patch 1 and add to drm-misc-next so it won't pollute -fixes but will still be eventually be backported when landing on linus master. Neil _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic