CVE-2023-52826 drm/panel/panel-tpo-tpg110: fix a possible null pointer dereference

In the Linux kernel, the following vulnerability has been resolved: drm/panel/panel-tpo-tpg110: fix a possible null pointer dereference In tpg110getmodes, the return value of drmmodeduplicate is assigned to mode, which will lead to a NULL pointer dereference on failure of drmmodeduplicate. Add a...