vmci_send_datagram() returns an int, with negative values indicating failure.
But we store it locally in a u32, which makes comparison of >= 0 useless.
Fixed to use an int.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NAndy King <acking@vmware.com>
Signed-off-by: NDmitry Torokhov <dtor@vmware.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

VMCI guest side driver code implementation.
Signed-off-by: NGeorge Zhang <georgezhang@vmware.com>
Acked-by: NAndy king <acking@vmware.com>
Acked-by: NDmitry Torokhov <dtor@vmware.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>