In the Linux kernel, the following vulnerability has been resolved:[EOL][EOL]PCI: cadence: Check for the existence of cdns_pcie::ops before using it[EOL][EOL]cdns_pcie::ops might not be populated by all the Cadence glue drivers. This[EOL]is going to be true for the upcoming Sophgo platform which doesn't set the[EOL]ops.[EOL][EOL]Hence, add a check to prevent NULL pointer dereference.[EOL][EOL][mani: reworded subject and description]