Re: [PATCH 2/2] serial: Add support to Disconnect fd passing connections

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Hi Luiz,

> > yes, you do have to keep track of the client. You wanna do a proper
> > shutdown if the client exits unexpectedly. Or forgets to call shutdown.
> 
> I guess the kernel would auto release the socket if the process exit
> and nobody else has a reference to it, so if we close our fd after it
> has been transferred the only one with reference is the client, iirc
> this was a problem to tty because we have to release the devnode to
> disconnect which involves ioctl but afaik that is not the case for
> sockets and the client can basically call close and be done with it,
> right?

does dbus-daemon holds the reference for the time of D-Bus message to be
in flight between bluetoothd and the client? If not, then we have a race
condition here, because we dropped the reference before it ended up on
the other side.

Regards

Marcel


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