By using drmm_universal_plane_alloc instead of drm_universal_plane_init, we let the DRM infrastructure handles resource allocation and cleanup. We can also get rid of some code repetitions for plane cleanup, improving code maintainability in vkms.
Signed-off-by: Melissa Wen melissa.srw@gmail.com --- drivers/gpu/drm/vkms/vkms_drv.h | 8 ++++++-- drivers/gpu/drm/vkms/vkms_output.c | 19 +++++-------------- drivers/gpu/drm/vkms/vkms_plane.c | 29 +++++++++++------------------ 3 files changed, 22 insertions(+), 34 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h index 35540c7c4416..70fb79621617 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.h +++ b/drivers/gpu/drm/vkms/vkms_drv.h @@ -37,6 +37,10 @@ struct vkms_plane_state { struct vkms_composer *composer; };
+struct vkms_plane { + struct drm_plane base; +}; + /** * vkms_crtc_state - Driver specific CRTC state * @base: base CRTC state @@ -114,8 +118,8 @@ int vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
int vkms_output_init(struct vkms_device *vkmsdev, int index);
-struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, - enum drm_plane_type type, int index); +struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev, + enum drm_plane_type type, int index);
/* CRC Support */ const char *const *vkms_get_crc_sources(struct drm_crtc *crtc, diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c index f5f6f15c362c..6979fbc7f821 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -39,7 +39,7 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) struct drm_connector *connector = &output->connector; struct drm_encoder *encoder = &output->encoder; struct drm_crtc *crtc = &output->crtc; - struct drm_plane *primary, *cursor = NULL; + struct vkms_plane *primary, *cursor = NULL; int ret; int writeback;
@@ -49,15 +49,13 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index)
if (vkmsdev->config->cursor) { cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index); - if (IS_ERR(cursor)) { - ret = PTR_ERR(cursor); - goto err_cursor; - } + if (IS_ERR(cursor)) + return PTR_ERR(cursor); }
- ret = vkms_crtc_init(dev, crtc, primary, cursor); + ret = vkms_crtc_init(dev, crtc, &primary->base, &cursor->base); if (ret) - goto err_crtc; + return ret;
ret = drm_connector_init(dev, connector, &vkms_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); @@ -100,12 +98,5 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) err_connector: drm_crtc_cleanup(crtc);
-err_crtc: - if (vkmsdev->config->cursor) - drm_plane_cleanup(cursor); - -err_cursor: - drm_plane_cleanup(primary); - return ret; } diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 6d310d31b75d..135140f8e87a 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -86,7 +86,6 @@ static void vkms_plane_reset(struct drm_plane *plane) static const struct drm_plane_funcs vkms_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, - .destroy = drm_plane_cleanup, .reset = vkms_plane_reset, .atomic_duplicate_state = vkms_plane_duplicate_state, .atomic_destroy_state = vkms_plane_destroy_state, @@ -191,18 +190,14 @@ static const struct drm_plane_helper_funcs vkms_primary_helper_funcs = { .cleanup_fb = vkms_cleanup_fb, };
-struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, - enum drm_plane_type type, int index) +struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev, + enum drm_plane_type type, int index) { struct drm_device *dev = &vkmsdev->drm; const struct drm_plane_helper_funcs *funcs; - struct drm_plane *plane; + struct vkms_plane *plane; const u32 *formats; - int ret, nformats; - - plane = kzalloc(sizeof(*plane), GFP_KERNEL); - if (!plane) - return ERR_PTR(-ENOMEM); + int nformats;
if (type == DRM_PLANE_TYPE_CURSOR) { formats = vkms_cursor_formats; @@ -214,16 +209,14 @@ struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, funcs = &vkms_primary_helper_funcs; }
- ret = drm_universal_plane_init(dev, plane, 1 << index, - &vkms_plane_funcs, - formats, nformats, - NULL, type, NULL); - if (ret) { - kfree(plane); - return ERR_PTR(ret); - } + plane = drmm_universal_plane_alloc(dev, struct vkms_plane, base, 1 << index, + &vkms_plane_funcs, + formats, nformats, + NULL, type, NULL); + if (IS_ERR(plane)) + return plane;
- drm_plane_helper_add(plane, funcs); + drm_plane_helper_add(&plane->base, funcs);
return plane; }