CVE-2022-49926 net: dsa: Fix possible memory leaks in dsa_loop_init()

In the Linux kernel, the following vulnerability has been resolved: net: dsa: Fix possible memory leaks in dsaloopinit kmemleak reported memory leaks in dsaloopinit: kmemleak: 12 new suspected memory leaks unreferenced object 0xffff8880138ce000 size 2048: comm "modprobe", pid 390, jiffies...