Re: [PATCH] scsi/aic94xx/aic94xx_hwi.c: Use dma_pool_zalloc

[Kees Cook]

On Wed, Oct 31, 2018 at 9:19 PM, Souptick Joarder <jrdr.linux@xxxxxxxxx> wrote:
> Replaced dma_pool_alloc + memset with dma_pool_zalloc
>
> Signed-off-by: Brajeswar Ghosh <brajeswar.linux@xxxxxxxxx>
> Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

> ---
>  drivers/scsi/aic94xx/aic94xx_hwi.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c
> index 3b8ad55e59de..2bc7615193bd 100644
> --- a/drivers/scsi/aic94xx/aic94xx_hwi.c
> +++ b/drivers/scsi/aic94xx/aic94xx_hwi.c
> @@ -1057,14 +1057,13 @@ static struct asd_ascb *asd_ascb_alloc(struct asd_ha_struct *asd_ha,
>
>         if (ascb) {
>                 ascb->dma_scb.size = sizeof(struct scb);
> -               ascb->dma_scb.vaddr = dma_pool_alloc(asd_ha->scb_pool,
> +               ascb->dma_scb.vaddr = dma_pool_zalloc(asd_ha->scb_pool,
>                                                      gfp_flags,
>                                                     &ascb->dma_scb.dma_handle);
>                 if (!ascb->dma_scb.vaddr) {
>                         kmem_cache_free(asd_ascb_cache, ascb);
>                         return NULL;
>                 }
> -               memset(ascb->dma_scb.vaddr, 0, sizeof(struct scb));
>                 asd_init_ascb(asd_ha, ascb);
>
>                 spin_lock_irqsave(&seq->tc_index_lock, flags);
> --
> 2.17.1
>



-- 
Kees Cook