CVE-2025-38240 drm/mediatek: dp: drm_err => dev_err in HPD path to avoid NULL ptr

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: drmerr = deverr in HPD path to avoid NULL ptr The function mtkdpwaithpdasserted may be called before the mtkdp-drmdev pointer is assigned in mtkdpbridgeattach. Specifically it can be called via this callpath: -...