net/smc: Fix possible leaked pernet namespace in smc_init()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.78 by commit 61defd6450a9ef4a1487090449999b0fd83518ef, it was introduced in version v5.14 by commit 194730a9beb52d2b030ea45e12d94868d4a0e6fd. For more details please see the references link.