Re: [PATCH/RFC 3/8] drm/ssd130x: Bail out early if data_array is not yet available

Geert Uytterhoeven writes: > Calling ssd130x_buf_alloc() from ssd130x_encoder_helper_atomic_enable() > is too late, causing a NULL pointer dereference: > > ssd130x_update_rect.isra.0+0x13c/0x340 > ssd130x_primary_plane_helper_atomic_update+0x26c/0x284 > drm_atomic_helper_commit_planes

[PATCH/RFC 3/8] drm/ssd130x: Bail out early if data_array is not yet available

Calling ssd130x_buf_alloc() from ssd130x_encoder_helper_atomic_enable() is too late, causing a NULL pointer dereference: ssd130x_update_rect.isra.0+0x13c/0x340 ssd130x_primary_plane_helper_atomic_update+0x26c/0x284 drm_atomic_helper_commit_planes+0xfc/0x27c Work around that by checkin