linux-kernel - Re: [PATCH/RFC 5/6] staging: board: Add support for devices with complex dependencies

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Date:	Fri, 3 Apr 2015 15:27:40 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Magnus Damm <damm+renesas@...nsource.se>,
	Arnd Bergmann <arnd@...db.de>,
	Simon Horman <horms+renesas@...ge.net.au>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	driverdevel <devel@...verdev.osuosl.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Marc Zyngier <marc.zyngier@....com>,
	Linux-sh list <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH/RFC 5/6] staging: board: Add support for devices with
 complex dependencies

On Fri, Apr 3, 2015 at 2:57 PM, Dan Carpenter <dan.carpenter@...cle.com> wrote:
>> +     error = clk_register_clkdev(clk, bsc->con_id, bsc->dev_id);
>> +     if (error)
>> +             pr_err("Failed to register clock %s (%d)\n", bsc->clk, error);
>> +             return error;
>
> Missing curly braces.  Also it's weird that don't we need a clk_put()
> on the error patch as well as the success path?

Thanks!

So it worked only by accident: with the new per-user struct clk instances
clk_put() must not be called if clk_register_clkdev() succeeded.

Will call clk_put() only if it failed.

>> +
>> +     clk_put(clk);
>> +     return 0;

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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