linux-kernel - Re: [PATCH] i2c: mux: Remove unneeded platform_set

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Date:	Fri, 15 Feb 2013 20:37:36 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Peter Korsgaard <peter.korsgaard@...co.com>,
	"Ben Dooks (embedded platforms)" <ben-linux@...ff.org>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: mux: Remove unneeded platform_set_drvdata to NULL
 in remove

On Fri, Feb 15, 2013 at 10:41:22AM -0800, Doug Anderson wrote:
> Stephen Warren pointed out as part of a code review of another mux
> driver that there should be no need to have
> "platform_set_drvdata(pdev, NULL)" in the remove function.  Get rid of
> it in the i2c-mux-gpio driver.
> 
> See Stephen's comment at:
>   http://www.gossamer-threads.com/lists/linux/kernel/1678627?do=post_view_threaded#1678627
> 
> Signed-off-by: Doug Anderson <dianders@...omium.org>

I think we should do this at least I2C subsystem wide (51 occasions of
setting some *_drvdata to NULL), even better kernel-wide. Patching
individual drivers won't cut the confusion around this issue, I am
afraid.

Thanks,

   Wolfram

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