diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-11-29 12:45:38 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-11-30 01:34:36 +0300 |
| commit | 661a3755610ead153232011d22dc5c3688b24146 (patch) | |
| tree | b02861e28123a25d475db5e8d2578ecf9c5f913f | |
| parent | b07c42547b8253c806ae2d03c452b7d894672685 (diff) | |
| download | linux-661a3755610ead153232011d22dc5c3688b24146.tar.xz | |
drm: Fix locking cargo-cult in encoder/plane init/cleanup
Encoders&planes can't be hotplugged, we dont need locking for this
since it's all single-threaded driver setup/teardown code. CRTCs
already don't grab locks.
While at it I noticed that plane's are missing the
drm_modeset_lock_fini() call, so add it.
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161129094538.9650-1-daniel.vetter@ffwll.ch
| -rw-r--r-- | drivers/gpu/drm/drm_encoder.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 4 |
2 files changed, 3 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c index 5c067719164d..992879f15f23 100644 --- a/drivers/gpu/drm/drm_encoder.c +++ b/drivers/gpu/drm/drm_encoder.c @@ -110,11 +110,9 @@ int drm_encoder_init(struct drm_device *dev, { int ret; - drm_modeset_lock_all(dev); - ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); if (ret) - goto out_unlock; + return ret; encoder->dev = dev; encoder->encoder_type = encoder_type; @@ -142,9 +140,6 @@ out_put: if (ret) drm_mode_object_unregister(dev, &encoder->base); -out_unlock: - drm_modeset_unlock_all(dev); - return ret; } EXPORT_SYMBOL(drm_encoder_init); @@ -164,12 +159,10 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) * the indices on the drm_encoder after us in the encoder_list. */ - drm_modeset_lock_all(dev); drm_mode_object_unregister(dev, &encoder->base); kfree(encoder->name); list_del(&encoder->head); dev->mode_config.num_encoder--; - drm_modeset_unlock_all(dev); memset(encoder, 0, sizeof(*encoder)); } diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 419ac313c36f..9147aab182c4 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -221,7 +221,8 @@ void drm_plane_cleanup(struct drm_plane *plane) { struct drm_device *dev = plane->dev; - drm_modeset_lock_all(dev); + drm_modeset_lock_fini(&plane->mutex); + kfree(plane->format_types); drm_mode_object_unregister(dev, &plane->base); @@ -236,7 +237,6 @@ void drm_plane_cleanup(struct drm_plane *plane) dev->mode_config.num_total_plane--; if (plane->type == DRM_PLANE_TYPE_OVERLAY) dev->mode_config.num_overlay_plane--; - drm_modeset_unlock_all(dev); WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); if (plane->state && plane->funcs->atomic_destroy_state) |