[PATCH 2/2] drm: Add kernel-doc for drm_crtc_commit_get/put

[Daniel Vetter]

I was lazy, rectify that! Also align with drm_atomic_state_get/put for
ocd.

Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
 drivers/gpu/drm/drm_atomic.c |  9 ++-------
 include/drm/drm_atomic.h     | 21 ++++++++++++++++++++-
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index b1b54011a92c..26a4cfdf7777 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -35,19 +35,14 @@
 
 #include "drm_crtc_internal.h"
 
-static void crtc_commit_free(struct kref *kref)
+void __drm_crtc_commit_free(struct kref *kref)
 {
 	struct drm_crtc_commit *commit =
 		container_of(kref, struct drm_crtc_commit, ref);
 
 	kfree(commit);
 }
-
-void drm_crtc_commit_put(struct drm_crtc_commit *commit)
-{
-	kref_put(&commit->ref, crtc_commit_free);
-}
-EXPORT_SYMBOL(drm_crtc_commit_put);
+EXPORT_SYMBOL(__drm_crtc_commit_free);
 
 /**
  * drm_atomic_state_default_release -
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 91b18bd7cb50..e8ed6f707497 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -199,12 +199,31 @@ struct drm_atomic_state {
 	struct work_struct commit_work;
 };
 
-void drm_crtc_commit_put(struct drm_crtc_commit *commit);
+void __drm_crtc_commit_free(struct kref *kref);
+
+/**
+ * drm_crtc_commit_get - acquire a reference to the CRTC commit
+ * @commit: CRTC commit
+ *
+ * Increases the reference of @commit.
+ */
 static inline void drm_crtc_commit_get(struct drm_crtc_commit *commit)
 {
 	kref_get(&commit->ref);
 }
 
+/**
+ * drm_crtc_commit_put - release a reference to the CRTC commmit
+ * @commit: CRTC commit
+ *
+ * This releases a reference to @commit which is freed after removing the
+ * final reference. No locking required and callable from any context.
+ */
+void drm_crtc_commit_put(struct drm_crtc_commit *commit)
+{
+	kref_put(&commit->ref, __drm_crtc_commit_free);
+}
+
 struct drm_atomic_state * __must_check
 drm_atomic_state_alloc(struct drm_device *dev);
 void drm_atomic_state_clear(struct drm_atomic_state *state);
-- 
2.11.0