| [linux-oxnas] Re: [PATCH] mtd: oxnas_nand: Allocating more than necessary in probe() |
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On Tue, 25 Apr 2017 12:19:49 +0300
Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> We only need to allocate sizeof(struct oxnas_nand_ctrl) which is 192
> bytes and not sizeof(struct nand_chip) which is a much larger 3056
> bytes.
>
> Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
>
> diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c
> index 3e3bf3b364d2..1b207aac840c 100644
> --- a/drivers/mtd/nand/oxnas_nand.c
> +++ b/drivers/mtd/nand/oxnas_nand.c
> @@ -91,7 +91,7 @@ static int oxnas_nand_probe(struct platform_device *pdev)
> int err = 0;
>
> /* Allocate memory for the device structure (and zero it) */
> - oxnas = devm_kzalloc(&pdev->dev, sizeof(struct nand_chip),
> + oxnas = devm_kzalloc(&pdev->dev, sizeof(*oxnas),
> GFP_KERNEL);
> if (!oxnas)
> return -ENOMEM;