drm/v3d: make v3d_debugfs_init() return 0

Since commit 987d65d0 (drm: debugfs: make
drm_debugfs_create_files() never fail), drm_debugfs_create_files() never
fails and should return void. Therefore, remove its use as the
return value of v3d_debugfs_init() and have the function return 0
directly instead.

v2: remove conversion of v3d_debugfs_init() to void to avoid build
breakage and enable individual compilation.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.htmlSigned-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-4-wambui.karugax@gmail.com

drivers/gpu/drm/v3d/v3d_debugfs.c

@@ -261,7 +261,8 @@ static const struct drm_info_list v3d_debugfs_list[] = {
 int
 v3d_debugfs_init(struct drm_minor *minor)
 {
-	return drm_debugfs_create_files(v3d_debugfs_list,
-					ARRAY_SIZE(v3d_debugfs_list),
-					minor->debugfs_root, minor);
+	drm_debugfs_create_files(v3d_debugfs_list,
+				 ARRAY_SIZE(v3d_debugfs_list),
+				 minor->debugfs_root, minor);
+	return 0;
 }