CVE-2022-49806 net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()

In the Linux kernel, the following vulnerability has been resolved: net: microchip: sparx5: Fix potential null-ptr-deref in sparxstatsinit and sparx5start sparxstatsinit calls createsinglethreadworkqueue and not checked the ret value, which may return NULL. And a null-ptr-deref may happen:...