target/linux/brcm2708/patches-4.4/0336-drm-vc4-Fix-NULL-deref-in-HDMI-init-error-path.patch

   1 From 00dc0773c1af03a24f76c53223ab0c3d1fc7debb Mon Sep 17 00:00:00 2001
   2 From: Eric Anholt <eric@anholt.net>
   3 Date: Mon, 4 Apr 2016 14:25:59 -0700
   4 Subject: [PATCH 336/381] drm/vc4: Fix NULL deref in HDMI init error path
   5
   6 If you make it here other than through err_destroy_encoder, vc4->hdmi
   7 is still NULL.
   8
   9 Signed-off-by: Eric Anholt <eric@anholt.net>
  10 (cherry picked from commit 5883980313af70aec0ceebaef6ef0709726e5e63)
  11 ---
  12  drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
  13  1 file changed, 1 insertion(+), 1 deletion(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
  17 @@ -573,7 +573,7 @@ err_unprepare_hsm:
  18  err_unprepare_pix:
  19         clk_disable_unprepare(hdmi->pixel_clock);
  20  err_put_i2c:
  21 -       put_device(&vc4->hdmi->ddc->dev);
  22 +       put_device(&hdmi->ddc->dev);
  23
  24         return ret;
  25  }