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drm/vc4: plane: check drm_gem_plane_helper_prepare_fb() return value

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Bubble up any error to the caller.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231216141518.242811-1-contact@emersion.fr
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Simon Ser 2023-12-16 14:15:27 +00:00 committed by Maxime Ripard
parent b4299c936d
commit b8a5d1f4a0
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1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/vc4/vc4_plane.c
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@ -1497,13 +1497,16 @@ static int vc4_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct vc4_bo *bo;
int ret;
if (!state->fb)
return 0;
bo = to_vc4_bo(&drm_fb_dma_get_gem_obj(state->fb, 0)->base);
drm_gem_plane_helper_prepare_fb(plane, state);
ret = drm_gem_plane_helper_prepare_fb(plane, state);
if (ret)
return ret;
if (plane->state->fb == state->fb)
return 0;