[QUESTION] drm/crtc: precondition for drm_crtc_init_with_planes()

[e . orlova]

Documentation for drm_crtc_init_with_planes() in
drivers/gpu/drm/drm_crtc.c states: «The crtc structure should not be
allocated with devm_kzalloc()».

However, in drivers/gpu/drm/stm/ltdc.c
the 2nd argument of the function drm_crtc_init_with_planes()
is a structure allocated with devm_kzalloc()

Also, in
drivers/gpu/drm/mediatek/mtk_drm_crtc.c
drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
drivers/gpu/drm/logicvc/logicvc_crtc.c
drivers/gpu/drm/meson/meson_crtc.c
drivers/gpu/drm/mxsfb/lcdif_kms.c
drivers/gpu/drm/mxsfb/mxsfb_kms.c
drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
drivers/gpu/drm/sun4i/sun4i_crtc.c
drivers/gpu/drm/tegra/dc.c
drivers/gpu/drm/tilcdc/tilcdc_crtc.c
the 2nd argument of the function drm_crtc_init_with_planes()
is a field of the structure allocated with devm_kzalloc()

Is it correct or can it lead to any problems?

--
Ekaterina Orlova
Linux Verification Center, ISPRAS