linux-kernel - Re: [PATCH] coccinelle: api: check for propagation of error from platform_get

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Message-ID: <alpine.DEB.2.02.1512262107340.2070@localhost6.localdomain6>
Date:	Sat, 26 Dec 2015 21:08:27 +0100 (CET)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
cc:	Julia Lawall <Julia.Lawall@...6.fr>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Nicolas Palix <nicolas.palix@...g.fr>,
	Michal Marek <mmarek@...e.com>, cocci@...teme.lip6.fr,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] coccinelle: api: check for propagation of error from
 platform_get_irq

On Sat, 26 Dec 2015, Sergei Shtylyov wrote:

> On 12/26/2015 10:24 PM, Julia Lawall wrote:
> 
> > The error return value of platform_get_irq seems to often get dropped.
> 
>    Maybe it was intentional (see my recent follow-up to your netdev patch).
> But if an error gets unconditionally overriden, deferred probing can't work.
> So your patches seem good things in the end. Thank you!

Actually, this semantic patch overloos the case where a constant is 
returned directly, which is apparently also popular.  I can update this if 
the whole concept is useful, but that's not clear at the moment...

julia
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