linux-kernel - Re: [PATCH 1/1] of: add NULL parameter check for of_device_is

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Date:	Tue, 13 Mar 2012 13:34:19 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	b29396@...escale.com
Cc:	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	grant.likely@...retlab.ca, rob.herring@...xeda.com
Subject: Re: [PATCH 1/1] of: add NULL parameter check for
 of_device_is_available

From: Dong Aisheng <b29396@...escale.com>
Date: Tue, 13 Mar 2012 19:40:05 +0800

> From: Dong Aisheng <dong.aisheng@...aro.org>
> 
> This function will return 1 even the device node passed in
> is NULL which is a little error-prone.
> Change to return 0 if the device node passed in is NULL.
> 
> Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>

I think this is a hard error and therefore BUG_ON(!device) is
more appropriate.
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