Re: [PATCH] mtd: rawnand: ingenic: Fix missing put_device in ingenic_ecc_get

[Paul Cercueil]

Hi,

Le jeu., déc. 30 2021 at 07:27:51 +0000, Miaoqian Lin 
<linmq006@xxxxxxxxx> a écrit :
> If of_find_device_by_node() succeeds, ingenic_ecc_get() doesn't have
> a corresponding put_device(). Thus add put_device() to fix the 
> exception
> handling.
>
> Fixes: 15de8c6 ("mtd: rawnand: ingenic: Separate top-level and SoC 
> specific code")
> Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>

Reviewed-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>

Cheers,
-Paul

> ---
>  drivers/mtd/nand/raw/ingenic/ingenic_ecc.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c 
> b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
> index efe0ffe4f1ab..9054559e52dd 100644
> --- a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
> +++ b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.c
> @@ -68,9 +68,14 @@ static struct ingenic_ecc *ingenic_ecc_get(struct 
> device_node *np)
>  	struct ingenic_ecc *ecc;
>
>  	pdev = of_find_device_by_node(np);
> -	if (!pdev || !platform_get_drvdata(pdev))
> +	if (!pdev)
>  		return ERR_PTR(-EPROBE_DEFER);
>
> +	if (!platform_get_drvdata(pdev)) {
> +		put_device(&pdev->dev);
> +		return ERR_PTR(-EPROBE_DEFER);
> +	}
> +
>  	ecc = platform_get_drvdata(pdev);
>  	clk_prepare_enable(ecc->clk);
>
> --
> 2.17.1