CVE-2022-50040 net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions()

In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix buffer overflow in sja1105setupdevlinkregions If an error occurs in dsadevlinkregioncreate, then 'priv-regions' array will be accessed by negative index '-1'. Found by Linux Verification Center...