linux-kernel - Re: [PATCH 3/4] drm/rockchip: add missing of_node

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Date:   Mon, 14 Jan 2019 11:09:05 +0100
From:   Heiko Stuebner <heiko@...ech.de>
To:     Daniel Vetter <daniel@...ll.ch>
Cc:     Julia Lawall <Julia.Lawall@...6.fr>,
        Sandy Huang <hjc@...k-chips.com>,
        kernel-janitors@...r.kernel.org, David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] drm/rockchip: add missing of_node_put

Am Montag, 14. Januar 2019, 11:05:56 CET schrieb Daniel Vetter:
> On Sun, Jan 13, 2019 at 07:48:49PM +0100, Heiko Stuebner wrote:
> > Am Sonntag, 13. Januar 2019, 09:47:43 CET schrieb Julia Lawall:
> > > The device node iterators perform an of_node_get on each iteration, so a
> > > jump out of the loop requires an of_node_put.
> > > 
> > > The semantic patch that fixes this problem is as follows
> > > (http://coccinelle.lip6.fr):
> > > 
> > > // <smpl>
> > > @@
> > > expression root,e;
> > > local idexpression child;
> > > iterator name for_each_child_of_node;
> > > @@
> > > 
> > >  for_each_child_of_node(root, child) {
> > >    ... when != of_node_put(child)
> > >        when != e = child
> > > +  of_node_put(child);
> > > ?  break;
> > >    ...
> > > }
> > > ... when != child
> > > // </smpl>
> > > 
> > > Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> > 
> > I've added a fixes+stable tag and applied it to drm-misc-fixes
> 
> All of them or just this one here? These cleanup patches have a high
> chance of falling through cracks, so taking them all usually works out
> better ...

That is the only one I got, so right now I only applied this one in my inbox.
Weekend and such resulted in me not going looking for other ones.

Heiko