RE: [PATCH] scsi: qla4xxx: NULL check before some freeing functions is not needed.

From: Rangankar, Manish
Date: Mon Dec 03 2018 - 00:50:54 EST



> -----Original Message-----
> From: Thomas Meyer <thomas@xxxxxxxx>
> Sent: Monday, December 3, 2018 2:22 AM
> To: Dept-Eng QLogic Storage Upstream <QLogic-Storage-
> Upstream@xxxxxxxxxx>; jejb@xxxxxxxxxxxxxxxxxx;
> martin.petersen@xxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx
> Subject: [PATCH] scsi: qla4xxx: NULL check before some freeing functions is not
> needed.
>
> External Email
>
> NULL check before some freeing functions is not needed.
>
> Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
> ---
>
> diff -u -p a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
> --- a/drivers/scsi/qla4xxx/ql4_os.c
> +++ b/drivers/scsi/qla4xxx/ql4_os.c
> @@ -4160,20 +4160,17 @@ static void qla4xxx_mem_free(struct scsi
> ha->fw_dump_size = 0;
>
> /* Free srb pool. */
> - if (ha->srb_mempool)
> - mempool_destroy(ha->srb_mempool);
> + mempool_destroy(ha->srb_mempool);
>
> ha->srb_mempool = NULL;
>
> - if (ha->chap_dma_pool)
> - dma_pool_destroy(ha->chap_dma_pool);
> + dma_pool_destroy(ha->chap_dma_pool);
>
> if (ha->chap_list)
> vfree(ha->chap_list);
> ha->chap_list = NULL;
>
> - if (ha->fw_ddb_dma_pool)
> - dma_pool_destroy(ha->fw_ddb_dma_pool);
> + dma_pool_destroy(ha->fw_ddb_dma_pool);
>
> /* release io space registers */
> if (is_qla8022(ha)) {

Thanks
Acked-by: Manish Rangankar <Manish.Rangankar@xxxxxxxxxx>