linux-kernel - Re: [PATCH v3] mtd: rawnand: atmel: fix possible object reference leak

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Date:   Tue, 5 Feb 2019 15:37:45 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Wen Yang <yellowriver2010@...mail.com>
Cc:     "tudor.ambarus@...rochip.com" <tudor.ambarus@...rochip.com>,
        "bbrezillon@...nel.org" <bbrezillon@...nel.org>,
        "richard@....at" <richard@....at>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        "nicolas.ferre@...rochip.com" <nicolas.ferre@...rochip.com>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "ludovic.desroches@...rochip.com" <ludovic.desroches@...rochip.com>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] mtd: rawnand: atmel: fix possible object reference
 leak

Hi Wen,

Wen Yang <yellowriver2010@...mail.com> wrote on Tue, 5 Feb 2019
14:32:41 +0000:

> of_find_device_by_node() takes a reference to the struct device
> when it finds a match via get_device, there is no need to call
> get_device() twice.
> We also should make sure to drop the reference to the device
> taken by of_find_device_by_node() on driver unbind.
> 
> Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
> Signed-off-by: Wen Yang <yellowriver2010@...mail.com>
> Suggested-by: Boris Brezillon <bbrezillon@...nel.org>
> Reviewed-by: Boris Brezillon <bbrezillon@...nel.org>
> Reviewed-by: Miquel Raynal <miquel.raynal@...tlin.com>

Please stop adding "Reviewed-by" tags from us if we did not write them!

> Acked-by: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: Tudor Ambarus <tudor.ambarus@...rochip.com>
> Cc: Boris Brezillon <bbrezillon@...nel.org>
> Cc: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: Richard Weinberger <richard@....at>
> Cc: David Woodhouse <dwmw2@...radead.org>
> Cc: Brian Norris <computersforpeace@...il.com>
> Cc: Marek Vasut <marek.vasut@...il.com>
> Cc: Nicolas Ferre <nicolas.ferre@...rochip.com>
> Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
> Cc: Ludovic Desroches <ludovic.desroches@...rochip.com>
> Cc: linux-mtd@...ts.infradead.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> ---

And for the other patches, please append a changelog explaining the
evolutions of the patch through the versions below the three dashes
'---'.


Thanks,
Miquèl