linux-kernel - Re: [PATCH 4/5] clk: imx31: add missing of_node

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Message-ID: <20151021231546.GK19782@codeaurora.org>
Date:	Wed, 21 Oct 2015 16:15:46 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	Shawn Guo <shawnguo@...nel.org>, kernel-janitors@...r.kernel.org,
	Sascha Hauer <kernel@...gutronix.de>,
	Michael Turquette <mturquette@...libre.com>,
	linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Andrew Lunn <andrew@...n.ch>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jason Cooper <jason@...edaemon.net>
Subject: Re: [PATCH 4/5] clk: imx31: add missing of_node_put

On 10/21, Julia Lawall wrote:
> for_each_compatible_node performs an of_node_get on each iteration, so a
> break out of the loop requires an of_node_put.
> 
> The semantic patch that fixes this problem is as follows
> (http://coccinelle.lip6.fr):
> 
> // <smpl>
> @@
> local idexpression n;
> expression e;
> @@
> 
>  for_each_compatible_node(n,...) {
>    ...
> (
>    of_node_put(n);
> |
>    e = n
> |
> +  of_node_put(n);
> ?  break;
> )
>    ...
>  }
> ... when != n
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
> 
> ---

Applied to clk-next

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