On Fri, Mar 04, 2016 at 03:22:01PM -0800, Douglas Anderson wrote: > 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 at chromium.org> > ---
Does dw_hdmi-imx need a similar change? I wonder if it would be cleaner to push this into dw_hdmi_bind() if it affects all of the platforms.. > drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c > b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c > index 3d3cf2f8891e..88776aba984e 100644 > --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c > +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c > @@ -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, > -- > 2.7.0.rc3.207.g0ac5344
