Re: [PATCH V2] s390/dasd: Use kzalloc instead of kmalloc/memset

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Haowen Bai <baihaowen@xxxxxxxxx> writes:

> Use kzalloc rather than duplicating its implementation, which
> makes code simple and easy to understand.
>
> Signed-off-by: Haowen Bai <baihaowen@xxxxxxxxx>
> ---
> V1->V2: also remove the isglobal assigment above, so the whole else block
> could go away
>
>  drivers/s390/block/dasd_eckd.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
> index 8410a25a65c1..6b70f9dfff02 100644
> --- a/drivers/s390/block/dasd_eckd.c
> +++ b/drivers/s390/block/dasd_eckd.c
> @@ -1480,7 +1480,7 @@ static int dasd_eckd_pe_handler(struct dasd_device *device,
>  {
>  	struct pe_handler_work_data *data;
>  
> -	data = kmalloc(sizeof(*data), GFP_ATOMIC | GFP_DMA);
> +	data = kzalloc(sizeof(*data), GFP_ATOMIC | GFP_DMA);
>  	if (!data) {
>  		if (mutex_trylock(&dasd_pe_handler_mutex)) {
>  			data = pe_handler_worker;
> @@ -1488,9 +1488,6 @@ static int dasd_eckd_pe_handler(struct dasd_device *device,
>  		} else {
>  			return -ENOMEM;
>  		}
> -	} else {
> -		memset(data, 0, sizeof(*data));
> -		data->isglobal = 0;
>  	}
>  	INIT_WORK(&data->worker, do_pe_handler_work);
>  	dasd_get_device(device);

Reviewed-by: Sven Schnelle <svens@xxxxxxxxxxxxx>



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