drm: Add local 'plane' variable for tmp->primary

Clean up the ugly tmp->primary-> stuff in
__drm_mode_set_config_internal() with a local plane variable.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180405151400.11326-13-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 98a36e6c69ad1b158184daa434559800abf3b86a..237bd34212dbf172d41c51e3d3fccf0c5cc18ce1 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -469,8 +469,11 @@ static int __drm_mode_set_config_internal(struct drm_mode_set *set,
         * connectors from it), hence we need to refcount the fbs across all
         * crtcs. Atomic modeset will have saner semantics ...
         */
-       drm_for_each_crtc(tmp, crtc->dev)
-               tmp->primary->old_fb = tmp->primary->fb;
+       drm_for_each_crtc(tmp, crtc->dev) {
+               struct drm_plane *plane = tmp->primary;
+
+               plane->old_fb = plane->fb;
+       }
 
        fb = set->fb;
 
@@ -481,11 +484,13 @@ static int __drm_mode_set_config_internal(struct drm_mode_set *set,
        }
 
        drm_for_each_crtc(tmp, crtc->dev) {
-               if (tmp->primary->fb)
-                       drm_framebuffer_get(tmp->primary->fb);
-               if (tmp->primary->old_fb)
-                       drm_framebuffer_put(tmp->primary->old_fb);
-               tmp->primary->old_fb = NULL;
+               struct drm_plane *plane = tmp->primary;
+
+               if (plane->fb)
+                       drm_framebuffer_get(plane->fb);
+               if (plane->old_fb)
+                       drm_framebuffer_put(plane->old_fb);
+               plane->old_fb = NULL;
        }
 
        return ret;