From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fXB1n-0001w4-0Y for linux-mtd@lists.infradead.org; Sun, 24 Jun 2018 19:50:29 +0000 Date: Sun, 24 Jun 2018 21:50:14 +0200 From: Boris Brezillon To: Stefan Agner Cc: dwmw2@infradead.org, computersforpeace@gmail.com, marek.vasut@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, thierry.reding@gmail.com, benjamin.lindqvist@endian.se, pgaikwad@nvidia.com, dev@lynxeye.de, mirza.krak@gmail.com, richard@nod.at, pdeschrijver@nvidia.com, linux-kernel@vger.kernel.org, krzk@kernel.org, jonathanh@nvidia.com, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, marcel@ziswiler.com, miquel.raynal@bootlin.com, linux-tegra@vger.kernel.org, digetx@gmail.com, gaireg@gaireg.de Subject: Re: [PATCH v7 4/6] mtd: rawnand: add NVIDIA Tegra NAND Flash controller driver Message-ID: <20180624215014.3249b382@bbrezillon> In-Reply-To: <20180624192230.4674-5-stefan@agner.ch> References: <20180624192230.4674-1-stefan@agner.ch> <20180624192230.4674-5-stefan@agner.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Sun, 24 Jun 2018 21:22:28 +0200 Stefan Agner wrote: > + > +static int tegra_nand_remove(struct platform_device *pdev) > +{ > + struct tegra_nand_controller *ctrl = platform_get_drvdata(pdev); > + > + nand_release(nand_to_mtd(ctrl->chip)); I still see nand_release() being used here. As I said in my review of v6, it's not safe. Please use mtd_device_unregister() + nand_cleanup() instead, and check the return code of mtd_device_unregister(). With this addressed Reviewed-by: Boris Brezillon > + > + clk_disable_unprepare(ctrl->clk); > + > + return 0; > +} > +