drm: fix missing reference counting decrease
authorInsu Yun <wuninsu@gmail.com>
Mon, 1 Feb 2016 16:08:29 +0000 (11:08 -0500)
committerDave Airlie <airlied@redhat.com>
Fri, 5 Feb 2016 05:23:48 +0000 (15:23 +1000)
In drm_dp_mst_allocate_vcpi, it returns true in two paths,
but in one path, there is no reference couting decrease.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/drm_dp_mst_topology.c

index 6ed90a2437e50438c713fc028f28705e7954b806..fe273b681fe50a78292713b3b89e2847e15f57b9 100644 (file)
@@ -2446,6 +2446,7 @@ bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp
                DRM_DEBUG_KMS("payload: vcpi %d already allocated for pbn %d - requested pbn %d\n", port->vcpi.vcpi, port->vcpi.pbn, pbn);
                if (pbn == port->vcpi.pbn) {
                        *slots = port->vcpi.num_slots;
+                       drm_dp_put_port(port);
                        return true;
                }
        }