[PATCH] drm/atomic: debugfs atomic state should be removed too

[Jyri Sarha]

If atomic state file is not removed from debugfs it will prevent
atomic driver modules from reloading after unload when debugfs is
enabled.

Fixes commit 6559c901cb484 ("drm/atomic: add debugfs file to dump out
atomic state")

Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 drivers/gpu/drm/drm_atomic.c  | 6 ++++++
 drivers/gpu/drm/drm_debugfs.c | 2 ++
 include/drm/drm_atomic.h      | 1 +
 3 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index b476ec5..0db642a 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1686,6 +1686,12 @@ int drm_atomic_debugfs_init(struct drm_minor *minor)
                        ARRAY_SIZE(drm_atomic_debugfs_list),
                        minor->debugfs_root, minor);
 }
+
+void drm_atomic_debugfs_fini(struct drm_minor *minor)
+{
+       drm_debugfs_remove_files(drm_atomic_debugfs_list,
+                       ARRAY_SIZE(drm_atomic_debugfs_list), minor);
+}
 #endif

 /*
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 206a4fe..68be42c 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -237,6 +237,8 @@ int drm_debugfs_cleanup(struct drm_minor *minor)

        drm_debugfs_remove_files(drm_debugfs_list, DRM_DEBUGFS_ENTRIES, minor);

+       drm_atomic_debugfs_fini(minor);
+
        debugfs_remove(minor->debugfs_root);
        minor->debugfs_root = NULL;

diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index c0eaec7..c8cec34 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -372,6 +372,7 @@ void drm_atomic_set_fence_for_plane(struct drm_plane_state 
*plane_state,
 #ifdef CONFIG_DEBUG_FS
 struct drm_minor;
 int drm_atomic_debugfs_init(struct drm_minor *minor);
+void drm_atomic_debugfs_fini(struct drm_minor *minor);
 #endif

 #define for_each_connector_in_state(__state, connector, connector_state, __i) \
-- 
1.9.1