[patch] drm/rockchip: inno_hdmi: fix an error code

[Dan Carpenter]

We were accidentally returning PTR_ERR(NULL) which means success when we
wanted to return a negative error code.

Fixes: 412d4ae6b7a5 ('drm/rockchip: hdmi: add Innosilicon HDMI support')
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c 
b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 10d62ff..f252441 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -855,8 +855,9 @@ static int inno_hdmi_bind(struct device *dev, struct device 
*master,

        hdmi->ddc = inno_hdmi_i2c_adapter(hdmi);
        if (IS_ERR(hdmi->ddc)) {
+               ret = PTR_ERR(hdmi->ddc);
                hdmi->ddc = NULL;
-               return PTR_ERR(hdmi->ddc);
+               return ret;
        }

        /*