scsi: qla2xxx: NULL check before some freeing functions is not needed

NULL check before some freeing functions is not needed.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_os.c

@@ -4183,11 +4183,9 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 	kfree(ha->nvram);
 	ha->nvram = NULL;
 fail_free_ctx_mempool:
-	if (ha->ctx_mempool)
 	mempool_destroy(ha->ctx_mempool);
 	ha->ctx_mempool = NULL;
 fail_free_srb_mempool:
-	if (ha->srb_mempool)
 	mempool_destroy(ha->srb_mempool);
 	ha->srb_mempool = NULL;
 fail_free_gid_list:
@@ -4490,7 +4488,6 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
 		    ha->mctp_dump_dma);
 
-	if (ha->srb_mempool)
 	mempool_destroy(ha->srb_mempool);
 
 	if (ha->dcbx_tlv)
@@ -4523,7 +4520,6 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 	if (ha->async_pd)
 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
 
-	if (ha->s_dma_pool)
 	dma_pool_destroy(ha->s_dma_pool);
 
 	if (ha->gid_list)
@@ -4545,13 +4541,10 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 		}
 	}
 
-	if (ha->dl_dma_pool)
 	dma_pool_destroy(ha->dl_dma_pool);
 
-	if (ha->fcp_cmnd_dma_pool)
 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
 
-	if (ha->ctx_mempool)
 	mempool_destroy(ha->ctx_mempool);
 
 	qlt_mem_free(ha);
@@ -7098,7 +7091,6 @@ qla2x00_module_exit(void)
 	qla2x00_release_firmware();
 	kmem_cache_destroy(srb_cachep);
 	qlt_exit();
-	if (ctx_cachep)
 	kmem_cache_destroy(ctx_cachep);
 	fc_release_transport(qla2xxx_transport_template);
 	fc_release_transport(qla2xxx_transport_vport_template);