From mboxrd@z Thu Jan  1 00:00:00 1970
From: viresh kumar <viresh.kumar2@arm.com>
Subject: Re: "clk: add non CONFIG_HAVE_CLK routines" commit
Date: Tue, 12 Jun 2012 12:13:23 +0100
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References: <20120522234621.GA3610@windriver.com> <CAOh2x=mFOPKbzuY__k0RVpFHTdPfa-iN1e3Lpa3iWt9iP6FzFw@mail.gmail.com> <20120612110929.GA16511@localhost>
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To: Fengguang Wu <fengguang.wu@intel.com>
Cc: viresh kumar <viresh.linux@gmail.com>, Russell King <linux@arm.linux.org.uk>, Sascha Hauer <s.hauer@pengutronix.de>, spear-devel <spear-devel@list.st.com>, Paul Gortmaker <paul.gortmaker@windriver.com>, "linux-next@vger.kernel.org" <linux-next@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>

On 12/06/12 12:09, Fengguang Wu wrote:
> Another thing I'm not sure is that the typical clk_get() callers only
> tests IS_ERR() on the returned value. As a clk newbie, I don't know
> whether there will be lots of clk users seeing this (new) NULL value
> on !CONFIG_HAVE_CLK and whether the current behavior is correct..

There have been long discussions over it in past, check this thread

https://lkml.org/lkml/2012/4/24/389

--
Viresh

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