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Add free callback to struct drm_client_funcs. Invoke function to free the client memory as part of the release process. Implement free for fbdev emulation. Fbdev emulation allocates and prepares client memory in drm_fbdev_client_setup(). The release happens in fb_destroy from struct fb_ops. Multiple implementations of this callback exist in the various drivers that provide an fbdev implementation. Each of them needs to follow the implementation details of the fbdev setup code. Adding a free callback for the client puts the unprepare and release of the fbdev client in a single place. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> # core, msm Acked-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # omapdrm Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> # gma500 Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://lore.kernel.org/r/20251009132006.45834-2-tzimmermann@suse.de