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drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path 

The drm_encoder_cleanup() was missing both from the error path of
dw_hdmi_rockchip_bind().  This caused a crash when slub_debug was
enabled and we ended up deferring probe of HDMI at boot.

This call isn't needed from unbind() because if dw_hdmi_bind() returns
no error then it takes over the job of freeing the encoder (in
dw_hdmi_unbind).

Signed-off-by: Douglas Anderson <dianders@chromium.org>
This commit is contained in:
Douglas Anderson 2016-03-07 14:00:50 -08:00 committed by Mark Yao
parent 3ed6c64911
commit 948cf42700
1 changed files with 10 additions and 1 deletions
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11
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
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@ -293,7 +293,16 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
drm_encoder_init(drm, encoder, &dw_hdmi_rockchip_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
return dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
ret = dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
/*
* If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
* which would have called the encoder cleanup. Do it manually.
*/
if (ret)
drm_encoder_cleanup(encoder);
return ret;
}
static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,