CVE-2026-72276 fbdev: metronomefb: fix potential memory leak in metronomefb_probe()

In the Linux kernel, the following vulnerability has been resolved: fbdev: metronomefb: fix potential memory leak in metronomefbprobe The memory allocated for pagerefs in fbdeferredioinit is not freed on the error path. Fix it by calling fbdeferrediocleanup...