drm/radeon: cleanup debugfs

Remove unnecessary debugfs dentries and also radeon_ttm_debugfs_fini()
as drm_debugfs_cleanup() will recursively remove debugfs files.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon.h

@@ -453,11 +453,6 @@ struct radeon_surface_reg {
 struct radeon_mman {
 	struct ttm_bo_device		bdev;
 	bool				initialized;
-
-#if defined(CONFIG_DEBUG_FS)
-	struct dentry			*vram;
-	struct dentry			*gtt;
-#endif
 };
 
 struct radeon_bo_list {

drivers/gpu/drm/radeon/radeon_ttm.c

@@ -53,7 +53,6 @@
 #include "radeon_ttm.h"
 
 static int radeon_ttm_debugfs_init(struct radeon_device *rdev);
-static void radeon_ttm_debugfs_fini(struct radeon_device *rdev);
 
 static int radeon_ttm_tt_bind(struct ttm_bo_device *bdev,
 			      struct ttm_tt *ttm,
@@ -777,7 +776,7 @@ void radeon_ttm_fini(struct radeon_device *rdev)
 
 	if (!rdev->mman.initialized)
 		return;
-	radeon_ttm_debugfs_fini(rdev);
+
 	if (rdev->stolen_vga_memory) {
 		r = radeon_bo_reserve(rdev->stolen_vga_memory, false);
 		if (r == 0) {
@@ -1010,12 +1009,11 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 	struct drm_minor *minor = rdev->ddev->primary;
 	struct dentry *root = minor->debugfs_root;
 
-	rdev->mman.vram = debugfs_create_file("radeon_vram", S_IFREG | S_IRUGO,
-					      root, rdev,
-					      &radeon_ttm_vram_fops);
+	debugfs_create_file("radeon_vram", S_IFREG | S_IRUGO, root, rdev,
+			    &radeon_ttm_vram_fops);
 
-	rdev->mman.gtt = debugfs_create_file("radeon_gtt", S_IFREG | S_IRUGO,
-					     root, rdev, &radeon_ttm_gtt_fops);
+	debugfs_create_file("radeon_gtt", S_IFREG | S_IRUGO, root, rdev,
+			    &radeon_ttm_gtt_fops);
 
 	count = ARRAY_SIZE(radeon_ttm_debugfs_list);
 
@@ -1025,15 +1023,3 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 	return 0;
 #endif
 }
-
-static void radeon_ttm_debugfs_fini(struct radeon_device *rdev)
-{
-#if defined(CONFIG_DEBUG_FS)
-
-	debugfs_remove(rdev->mman.vram);
-	rdev->mman.vram = NULL;
-
-	debugfs_remove(rdev->mman.gtt);
-	rdev->mman.gtt = NULL;
-#endif
-}