target/linux/bcm27xx/patches-6.1/950-0936-drm-vc4-plane-Use-return-variable-in-atomic_check.patch

   1 From 950394a39f659746e5933cbc203a8bedef8246b7 Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Fri, 17 Feb 2023 14:26:44 +0100
   4 Subject: [PATCH] drm/vc4: plane: Use return variable in atomic_check
   5
   6 The vc4_plane_atomic_check() directly returns the result of the final
   7 function it calls.
   8
   9 Using the already defined ret variable to check its content on error,
  10 and a separate return 0 on success, makes it easier to extend.
  11
  12 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  13 ---
  14  drivers/gpu/drm/vc4/vc4_plane.c | 6 +++++-
  15  1 file changed, 5 insertions(+), 1 deletion(-)
  16
  17 --- a/drivers/gpu/drm/vc4/vc4_plane.c
  18 +++ b/drivers/gpu/drm/vc4/vc4_plane.c
  19 @@ -1378,7 +1378,11 @@ static int vc4_plane_atomic_check(struct
  20         if (ret)
  21                 return ret;
  22
  23 -       return vc4_plane_allocate_lbm(new_plane_state);
  24 +       ret = vc4_plane_allocate_lbm(new_plane_state);
  25 +       if (ret)
  26 +               return ret;
  27 +
  28 +       return 0;
  29  }
  30
  31  static void vc4_plane_atomic_update(struct drm_plane *plane,