linux-kernel - Re: [PATCH] [mtd] fixed faulty check

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Message-ID: <4A71B401.1090208@linutronix.de>
Date:	Thu, 30 Jul 2009 16:53:53 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Stoyan Gaydarov <sgayda2@...c.edu>
CC:	vimal singh <vimal.newwork@...il.com>,
	linux-kernel@...r.kernel.org, David.Woodhouse@...el.com,
	sr@...x.de, kay.sievers@...y.org, gregkh@...e.de,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] [mtd] fixed faulty check

Stoyan Gaydarov wrote:
>>> We have to and of_flash_remove() takes care of it.
>>>     
>>   
> Does this mean that the original patch is fine or does it still need the 
> kfree? From what i understand when going to err_out it will take care of 
> info using of_flash_remove() so then it is not needed in the if check.

The original patch was fine but it leaked info. of_flash_remove() does the
cleanup of info but only if it is part of driver's data (after the
of_flash_remove()). So you have to call dev_set_drvdata(&dev->dev, info)
earlier, after the kzalloc() to save the data or else there is no clean
up.

> -Stoyan

Sebastian
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