From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julia Lawall <julia.lawall@lip6.fr>
Date: Sat, 23 Jul 2016 14:56:14 +0000
Subject: is_err checking
Message-Id: <alpine.DEB.2.10.1607231653440.3490@hadrien>
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To: kernel-janitors@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Code like the following looks a bit clunky to me:

if (IS_ERR(data->clk) && PTR_ERR(data->clk) != -EPROBE_DEFER)

Is there any reason not to always use eg

data->clk = ERR_PTR(-EPROBE_DEFER)

Code of the latter form is a bit more popular.  Perhaps one could want
something like:

IS_ERR_VALUE(data->clk, -EPROBE_DEFER)

but IS_ERR_VALUE is laready used for something else.

julia