[PATCH 4.9 041/145] usbip: keep usbip_device sockfd state in sync with tcp_socket

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Shuah Khan commit 009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed upstream. Keep usbip_device sockfd state in sync with tcp_socket. When tcp_socket is reset to null, reset

[PATCH 4.9 041/145] usbip: keep usbip_device sockfd state in sync with tcp_socket

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Shuah Khan commit 009f41aed4b3e11e6dc1e3c07377a10c20f1a5ed upstream. Keep usbip_device sockfd state in sync with tcp_socket. When tcp_socket is reset to null, reset sockfd to -1 to keep it in