CVE-2022-49438 Input: sparcspkr - fix refcount leak in bbc_beep_probe

In the Linux kernel, the following vulnerability has been resolved: Input: sparcspkr - fix refcount leak in bbcbeepprobe offindnodebypath calls offindnodeoptsbypath, which returns a node pointer with refcount incremented, we should use ofnodeput on it when done. Add missing ofnodeput to avoid...