[RESEND][PATCH -next] drm/dp-mst: Fix unused variable warning

[Shaokun Zhang]

drivers/gpu/drm/drm_dp_mst_topology.c: In function ‘drm_atomic_get_mst_topology_state’:
drivers/gpu/drm/drm_dp_mst_topology.c:4187:21: warning: unused variable ‘dev’ [-Wunused-variable]
  struct drm_device *dev = mgr->dev;
                     ^
Fixes: 83fa9842afe7 ("drm/dp-mst: Drop connection_mutex check")
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Sean Paul <sean at poorly.run>
Cc: Lyude Paul <lyude at redhat.com>
Signed-off-by: Shaokun Zhang <zhangshaokun at hisilicon.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 9364e4f42975..9cccc5e63309 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -4184,8 +4184,6 @@ EXPORT_SYMBOL(drm_dp_mst_topology_state_funcs);
 struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state,
 								    struct drm_dp_mst_topology_mgr *mgr)
 {
-	struct drm_device *dev = mgr->dev;
-
 	return to_dp_mst_topology_state(drm_atomic_get_private_obj_state(state, &mgr->base));
 }
 EXPORT_SYMBOL(drm_atomic_get_mst_topology_state);
-- 
2.7.4