scsi: megaraid_sas: 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: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/megaraid/megaraid_mbox.c

@@ -1243,7 +1243,6 @@ megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
 		dma_pool_free(raid_dev->sg_pool_handle, sg_pci_blk[i].vaddr,
 			sg_pci_blk[i].dma_addr);
 	}
-	if (raid_dev->sg_pool_handle)
 	dma_pool_destroy(raid_dev->sg_pool_handle);
 
 
@@ -1252,7 +1251,6 @@ megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
 		dma_pool_free(raid_dev->epthru_pool_handle,
 			epthru_pci_blk[i].vaddr, epthru_pci_blk[i].dma_addr);
 	}
-	if (raid_dev->epthru_pool_handle)
 	dma_pool_destroy(raid_dev->epthru_pool_handle);
 
 
@@ -1261,7 +1259,6 @@ megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
 		dma_pool_free(raid_dev->mbox_pool_handle,
 			mbox_pci_blk[i].vaddr, mbox_pci_blk[i].dma_addr);
 	}
-	if (raid_dev->mbox_pool_handle)
 	dma_pool_destroy(raid_dev->mbox_pool_handle);
 
 	return;

drivers/scsi/megaraid/megaraid_mm.c

@@ -1017,7 +1017,6 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
 	kfree(adapter->kioc_list);
 	kfree(adapter->mbox_list);
 
-	if (adapter->pthru_dma_pool)
 	dma_pool_destroy(adapter->pthru_dma_pool);
 
 	kfree(adapter);

drivers/scsi/megaraid/megaraid_sas_fusion.c

@@ -807,9 +807,7 @@ megasas_free_rdpq_fusion(struct megasas_instance *instance) {
 
 	}
 
-	if (fusion->reply_frames_desc_pool)
 	dma_pool_destroy(fusion->reply_frames_desc_pool);
-	if (fusion->reply_frames_desc_pool_align)
 	dma_pool_destroy(fusion->reply_frames_desc_pool_align);
 
 	if (fusion->rdpq_virt)
@@ -830,7 +828,6 @@ megasas_free_reply_fusion(struct megasas_instance *instance) {
 			fusion->reply_frames_desc[0],
 			fusion->reply_frames_desc_phys[0]);
 
-	if (fusion->reply_frames_desc_pool)
 	dma_pool_destroy(fusion->reply_frames_desc_pool);
 
 }
@@ -1623,7 +1620,6 @@ static inline void megasas_free_ioc_init_cmd(struct megasas_instance *instance)
 				  fusion->ioc_init_cmd->frame,
 				  fusion->ioc_init_cmd->frame_phys_addr);
 
-	if (fusion->ioc_init_cmd)
 	kfree(fusion->ioc_init_cmd);
 }