Re: [PATCH] watchdog: machzwd : fix warning Using plain integer as NULL pointer

[Mukesh Ojha <mojha@xxxxxxxxxxxxxx>]

On 4/6/2019 6:44 PM, Hariprasad Kelam wrote:
> Changes passing function argument 0 to NULL to avoid below sparse
> warning
>
>   CHECK   drivers/watchdog//machzwd.c
> drivers/watchdog//machzwd.c:321:25: warning: Using plain integer as NULL
> pointer
> Signed-off-by: Hariprasad Kelam <hariprasad.kelam@xxxxxxxxx>
Reviewed-by: Mukesh Ojha <mojha@xxxxxxxxxxxxxx>

Cheers,
-Mukesh

> ---
>   drivers/watchdog/machzwd.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
> index 88d823d..c3926d0 100644
> --- a/drivers/watchdog/machzwd.c
> +++ b/drivers/watchdog/machzwd.c
> @@ -318,7 +318,7 @@ static long zf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
>   	case WDIOC_GETBOOTSTATUS:
>   		return put_user(0, p);
>   	case WDIOC_KEEPALIVE:
> -		zf_ping(0);
> +		zf_ping(NULL);
>   		break;
>   	default:
>   		return -ENOTTY;