As the ivshmem Server-Client Protol describes, when a
client disconnects from the server, server sends disconnect
notifications to the other clients. And the other clients
will free the eventfds of the disconnected client according
to the client ID. If the client ID is reused, the eventfds
may be double freed.
It will be solved by setting eventfds to NULL after freeing
and allocating memory for it when it's used.
Signed-off-by: Peng Liang <liangpeng10@huawei.com>
Signed-off-by: jiangdongxu <jiangdongxu1@huawei.com>
