Re: [PATCH] drivers/ata: Fix kernel pointer leak

[Damien Le Moal <damien.lemoal@opensource.wdc.com>]

On 2021/09/29 21:16, Guo Zhi wrote:
> Pointers should be printed with %p or %px rather than cast to
> 'unsigned long' and pinted with %lx

s/pinted/printed

> Change %lx to %p to print the secured pointer.
> 
> Signed-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
> ---
>  drivers/ata/pata_atp867x.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c
> index 2bc5fc81efe3..c32b95f48e50 100644
> --- a/drivers/ata/pata_atp867x.c
> +++ b/drivers/ata/pata_atp867x.c
> @@ -447,11 +447,11 @@ static int atp867x_ata_pci_sff_init_host(struct ata_host *host)
>  #ifdef	ATP867X_DEBUG
>  		atp867x_check_ports(ap, i);
>  #endif
> -		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx",
> -			(unsigned long)ioaddr->cmd_addr,
> -			(unsigned long)ioaddr->ctl_addr);
> -		ata_port_desc(ap, "bmdma 0x%lx",
> -			(unsigned long)ioaddr->bmdma_addr);
> +		ata_port_desc(ap, "cmd 0x%p ctl 0x%p",
> +			ioaddr->cmd_addr,
> +			ioaddr->ctl_addr);
> +		ata_port_desc(ap, "bmdma 0x%p",
> +			ioaddr->bmdma_addr);
>  
>  		mask |= 1 << i;
>  	}
> 

Looks OK to me. But please fix the commit title to:

"ata: atp867x: Fix pointer value print"

"pointer leak" is too scary for what is only a simple printk problem.

-- 
Damien Le Moal
Western Digital Research