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

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Date:	Thu, 22 Oct 2015 10:21:29 +0100
From:	Sudeep Holla <sudeep.holla@....com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	Sudeep Holla <sudeep.holla@....com>,
	kernel-janitors@...r.kernel.org,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	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 5/5] clk: scpi: add missing of_node_put



On 21/10/15 21:41, Julia Lawall wrote:
> for_each_available_child_of_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>
> @@
> expression root,e;
> local idexpression child;
> @@
>
>   for_each_available_child_of_node(root, child) {
>     ... when != of_node_put(child)
>         when != e = child
> (
>     return child;
> |
> +  of_node_put(child);
> ?  return ...;
> )
>     ...
>   }
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

Thanks for the fix.

Acked-by: Sudeep Holla <sudeep.holla@....com>

PS: Since this driver is queued via arm-soc, it needs to go via them or
wait for v4.4-rc1 and then queue via clk tree.

-- 
Regards,
Sudeep
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