drm/vc4: Fix NULL deref in HDMI init error path

If you make it here other than through err_destroy_encoder, vc4->hdmi
is still NULL.

Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index d8b864925fd38757cdc12e72d5ea102f32d2af09..fd2644d231ff867a4409840eba7f8234a4a1faba 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -573,7 +573,7 @@ err_unprepare_hsm:
 err_unprepare_pix:
        clk_disable_unprepare(hdmi->pixel_clock);
 err_put_i2c:
-       put_device(&vc4->hdmi->ddc->dev);
+       put_device(&hdmi->ddc->dev);
 
        return ret;
 }