linux-kernel - Re: [PATCH -next] mtd: spinand: Fix error return code in spinand

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Message-ID: <20180704102829.6b29c6cb@bbrezillon>
Date:   Wed, 4 Jul 2018 10:28:29 +0200
From:   Boris Brezillon <boris.brezillon@...tlin.com>
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        "David Woodhouse" <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Peter Pan <peterpandong@...ron.com>,
        Frieder Schrempf <frieder.schrempf@...eet.de>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH -next] mtd: spinand: Fix error return code in
 spinand_init()

On Wed, 4 Jul 2018 08:34:58 +0000
Wei Yongjun <weiyongjun1@...wei.com> wrote:

> Fix to return error code -ENOMEM from the kzalloc() error handling
> case instead of 0, as done elsewhere in this function.
> 
> Fixes: c898e0526fb6 ("mtd: nand: Add core infrastructure to support SPI NANDs")
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>

Acked-by: Boris Brezillon <boris.brezillon@...tlin.com>

> ---
>  drivers/mtd/nand/spi/core.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
> index 17d207a..011683e 100644
> --- a/drivers/mtd/nand/spi/core.c
> +++ b/drivers/mtd/nand/spi/core.c
> @@ -985,8 +985,10 @@ static int spinand_init(struct spinand_device *spinand)
>  	spinand->databuf = kzalloc(nanddev_page_size(nand) +
>  			       nanddev_per_page_oobsize(nand),
>  			       GFP_KERNEL);
> -	if (!spinand->databuf)
> +	if (!spinand->databuf) {
> +		ret = -ENOMEM;
>  		goto err_free_bufs;
> +	}
>  
>  	spinand->oobbuf = spinand->databuf + nanddev_page_size(nand);
>