vsock: prevent unnecessary refcnt inc for nonblocking connect
Currently vosck_connect() increments sock refcount for nonblocking socket each time it's called, which can lead to memory leak if it's called multiple times because connect timeout function decrements sock refcount only once. Fixes it by making vsock_connect() return -EALREADY immediately when sock state is already SS_CONNECTING. Fixes: d021c344 ("VSOCK: Introduce VM Sockets") Reviewed-by:Stefano Garzarella <sgarzare@redhat.com> Signed-off-by:
Eiichi Tsukata <eiichi.tsukata@nutanix.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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