On 07/19/2023 01:43 AM, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
> 
> MTD subsystem may return -EPROBE_DEFER if something isn't ready yet.
> It's important to pass that error up so device will get probed later.
> 
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
> ---
> V2: Add of_node_put() - thanks Miquel!
> ---
>   drivers/mtd/nand/raw/brcmnand/brcmnand.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> index 39661e23d7d4..03764b589ec5 100644
> --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
> @@ -3245,6 +3245,10 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
>   
>   			ret = brcmnand_init_cs(host, NULL);
>   			if (ret) {
> +				if (ret == -EPROBE_DEFER) {
> +					of_node_put(child);
> +					goto err;
> +				}
>   				devm_kfree(dev, host);
>   				continue; /* Try all chip-selects */
>   			}
> 

Acked-by: William Zhang <william.zhang@broadcom.com>