compositor-drm: refactor into drm_mode_list_destroy()

I need to destroy the list from more places, so factor out the common
bits. No functional changes.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Ian Ray <ian.ray@ge.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index d192cf3..2f7247c 100644 (file)
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -3754,6 +3754,20 @@ drm_output_destroy_mode(struct drm_backend *backend, struct drm_mode *mode)
        free(mode);
 }
 
+/** Destroy a list of drm_modes
+ *
+ * @param backend The backend for releasing mode property blobs.
+ * @param mode_list The list linked by drm_mode::base.link.
+ */
+static void
+drm_mode_list_destroy(struct drm_backend *backend, struct wl_list *mode_list)
+{
+       struct drm_mode *mode, *next;
+
+       wl_list_for_each_safe(mode, next, mode_list, base.link)
+               drm_output_destroy_mode(backend, mode);
+}
+
 static int
 drm_subpixel_to_wayland(int drm_value)
 {
@@ -4806,7 +4820,6 @@ drm_output_destroy(struct weston_output *base)
 {
        struct drm_output *output = to_drm_output(base);
        struct drm_backend *b = to_drm_backend(base->compositor);
-       struct drm_mode *drm_mode, *next;
 
        if (output->page_flip_pending || output->vblank_pending ||
            output->atomic_complete_pending) {
@@ -4818,9 +4831,7 @@ drm_output_destroy(struct weston_output *base)
        if (output->base.enabled)
                drm_output_deinit(&output->base);
 
-       wl_list_for_each_safe(drm_mode, next, &output->base.mode_list,
-                             base.link)
-               drm_output_destroy_mode(b, drm_mode);
+       drm_mode_list_destroy(b, &output->base.mode_list);
 
        if (output->pageflip_timer)
                wl_event_source_remove(output->pageflip_timer);