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drm/sun4i: hdmi: Remove duplicate cleanup calls

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commit 57177d214ee0816c4436c23d6c933ccb32c571f1 upstream.

When the HDMI unbinds drm_connector_cleanup() and drm_encoder_cleanup()
are called. This also happens when the connector and the encoder are
destroyed. This double call triggers a NULL pointer exception.

The patch fixes this by removing the cleanup calls in the unbind
function.

Cc: <stable@vger.kernel.org>
Fixes: 9c5681011a ("drm/sun4i: Add HDMI support")
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20191217124632.20820-1-stefan@olimex.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stefan Mavrodiev 2019-12-17 14:46:32 +02:00 • committed by Greg Kroah-Hartman
commit 55ab031c0a
1 changed files with 0 additions and 2 deletions
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2
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
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@ -683,8 +683,6 @@ static void sun4i_hdmi_unbind(struct device *dev, struct device *master,
struct sun4i_hdmi *hdmi = dev_get_drvdata(dev);
cec_unregister_adapter(hdmi->cec_adap);
drm_connector_cleanup(&hdmi->connector);
drm_encoder_cleanup(&hdmi->encoder);
i2c_del_adapter(hdmi->i2c);
i2c_put_adapter(hdmi->ddc_i2c);
clk_disable_unprepare(hdmi->mod_clk);