Re: [PATCH] Fix memory leak in transport-helper

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On Tue, 27 Oct 2009, Johannes Schindelin wrote:

> Hi,
> 
> On Tue, 27 Oct 2009, Daniel Barkalow wrote:
> 
> > On Tue, 27 Oct 2009, Johannes Schindelin wrote:
> > 
> > > Hi,
> > > 
> > > On Tue, 27 Oct 2009, Daniel Barkalow wrote:
> > > 
> > > > diff --git a/transport-helper.c b/transport-helper.c
> > > > index f57e84c..479539d 100644
> > > > --- a/transport-helper.c
> > > > +++ b/transport-helper.c
> > > > @@ -67,6 +67,13 @@ static int disconnect_helper(struct transport *transport)
> > > >  	return 0;
> > > >  }
> > > >  
> > > > +static int close_helper(struct transport *transport)
> > > > +{
> > > > +	disconnect_helper(transport);
> > > > +	free(transport->data);
> > > > +	return 0;
> > > > +}
> > > 
> > > Why did you not leech the transport->data = NULL; part from Peff/Sverre's 
> > > patch?
> > 
> > Because this code is only called just before transport itself is freed by 
> > the caller, and, in general, a transport with these methods is invalid 
> > without a valid transport->data. I expect that's also why Peff called it a 
> > hack not appropriate for actual application.
> 
> So you mean to imply that this method is not about closing, but about 
> releasing the structure.  Right?

Yes, that's the word I was failing to come up with last night, thanks.
Junio, "s/close/release/g" on that patch should improve comprehensibility 
greatly. (And changing the transport method name would probably also 
improve matters)

	-Daniel
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