net/9p: Fix a potential socket leak in p9socketopen
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 v5.15.82 by commit 8782b32ef867de7981bbe9e86ecb90e92e8780bd, it was introduced in version v2.6.33 by commit 6b18662e239a032f908b7f6e164bdf7e2e0a32c9. For more details please see the references link.