netdev - RE: [PATCH v2 net-next 1/2] lan743x: Add main source files for new lan743x driver

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Message-ID: <90A7E81AE28BAE4CBDDB3B35F187D2644071DC9C@CHN-SV-EXMX02.mchp-main.com>
Date:   Thu, 22 Feb 2018 22:10:09 +0000
From:   <Bryan.Whitehead@...rochip.com>
To:     <andrew@...n.ch>
CC:     <davem@...emloft.net>, <UNGLinuxDriver@...rochip.com>,
        <netdev@...r.kernel.org>
Subject: RE: [PATCH v2 net-next 1/2] lan743x: Add main source files for new
 lan743x driver

> On Thu, Feb 22, 2018 at 10:45:34PM +0100, Andrew Lunn wrote:
> > > Also I'm allocating interrupt resources on interface up, and freeing
> > > resources on interface down. So if there is an up, down, up sequence
> > > then the driver will allocate resources twice. In order for devm to
> > > work properly, should I move all resource allocation into the probe
> function?
> >
> > Hi Bryan
> >
> > It is better to fail early if the resource is not available, so yes, i
> > would register the interrupt handler in probe.
> 
> And we maintainers don't always agree with each other :-)
> 
> Doing irq handling in open/close without devm_ is also O.K.
> 
> 	 Andrew

Thanks Andrew, and Florian,

Moving irq allocation and free, to probe and remove, will require a bit of refactoring and possibly introduce new issues. For now I will keep IRQ handling in open/close without devm_.

Other resource allocations are already in probe/remove so I will apply your suggestions in the next patch revision.

Thanks,
Bryan