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SubjectRe: [PATCH V2] s390/dasd: Use kzalloc instead of kmalloc/memset
Date
Haowen Bai <baihaowen@meizu.com> writes:

> Use kzalloc rather than duplicating its implementation, which
> makes code simple and easy to understand.
>
> Signed-off-by: Haowen Bai <baihaowen@meizu.com>
> ---
> 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@linux.ibm.com>

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