[PATCH] kfree cleanup: drivers/scsi

This is the drivers/scsi/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/scsi/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

21 files changed, 73 insertions, 141 deletions

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index d06ee65..3ff74f4 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1017,8 +1017,7 @@ static void twa_free_device_extension(TW_Device_Extension *tw_dev)
 				    tw_dev->generic_buffer_virt[0],
 				    tw_dev->generic_buffer_phys[0]);
 
-	if (tw_dev->event_queue[0])
-		kfree(tw_dev->event_queue[0]);
+	kfree(tw_dev->event_queue[0]);
 } /* End twa_free_device_extension() */
 
 /* This function will free a request id */
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index ee90672..723c0ce 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1164,7 +1164,7 @@ int aac_command_thread(struct aac_dev * dev)
 						kfree(hw_fib_pool);
 						hw_fib_pool = NULL;
 					}
-				} else if (hw_fib_pool) {
+				} else {
 					kfree(hw_fib_pool);
 					hw_fib_pool = NULL;
 				}
@@ -1247,17 +1247,13 @@ int aac_command_thread(struct aac_dev * dev)
 				hw_fib_p = hw_fib_pool;
 				fib_p = fib_pool;
 				while (hw_fib_p < &hw_fib_pool[num]) {
-					if (*hw_fib_p)
-						kfree(*hw_fib_p);
-					if (*fib_p)
-						kfree(*fib_p);
+					kfree(*hw_fib_p);
+					kfree(*fib_p);
 					++fib_p;
 					++hw_fib_p;
 				}
-				if (hw_fib_pool)
-					kfree(hw_fib_pool);
-				if (fib_pool)
-					kfree(fib_pool);
+				kfree(hw_fib_pool);
+				kfree(fib_pool);
 			}
 			kfree(fib);
 			spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags);
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 37ec541..f4cfb8f 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -5402,10 +5402,8 @@ advansys_detect(struct scsi_host_template *tpnt)
                 release_region(shp->io_port, boardp->asc_n_io_port);
                 if (ASC_WIDE_BOARD(boardp)) {
                     iounmap(boardp->ioremap_addr);
-                    if (boardp->orig_carrp) {
-                        kfree(boardp->orig_carrp);
-                        boardp->orig_carrp = NULL;
-                    }
+                    kfree(boardp->orig_carrp);
+                    boardp->orig_carrp = NULL;
                     if (boardp->orig_reqp) {
                         kfree(boardp->orig_reqp);
                         boardp->orig_reqp = boardp->adv_reqp = NULL;
@@ -5457,10 +5455,8 @@ advansys_release(struct Scsi_Host *shp)
         adv_sgblk_t    *sgp = NULL;
 
         iounmap(boardp->ioremap_addr);
-        if (boardp->orig_carrp) {
-            kfree(boardp->orig_carrp);
-            boardp->orig_carrp = NULL;
-        }
+        kfree(boardp->orig_carrp);
+        boardp->orig_carrp = NULL;
         if (boardp->orig_reqp) {
             kfree(boardp->orig_reqp);
             boardp->orig_reqp = boardp->adv_reqp = NULL;
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index adda750..1b1adfb 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -543,10 +543,8 @@ static void aha1542_intr_handle(struct Scsi_Host *shost, void *dev_id, struct pt
 			return;
 		}
 		my_done = SCtmp->scsi_done;
-		if (SCtmp->host_scribble) {
-			kfree(SCtmp->host_scribble);
-			SCtmp->host_scribble = NULL;
-		}
+		kfree(SCtmp->host_scribble);
+		SCtmp->host_scribble = NULL;
 		/* Fetch the sense data, and tuck it away, in the required slot.  The
 		   Adaptec automatically fetches it, and there is no guarantee that
 		   we will still have it in the cdb when we come back */
@@ -1432,10 +1430,8 @@ static int aha1542_dev_reset(Scsi_Cmnd * SCpnt)
 		    HOSTDATA(SCpnt->host)->SCint[i]->target == SCpnt->target) {
 			Scsi_Cmnd *SCtmp;
 			SCtmp = HOSTDATA(SCpnt->host)->SCint[i];
-			if (SCtmp->host_scribble) {
-				kfree(SCtmp->host_scribble);
-				SCtmp->host_scribble = NULL;
-			}
+			kfree(SCtmp->host_scribble);
+			SCtmp->host_scribble = NULL;
 			HOSTDATA(SCpnt->host)->SCint[i] = NULL;
 			HOSTDATA(SCpnt->host)->mb[i].status = 0;
 		}
@@ -1495,10 +1491,8 @@ static int aha1542_bus_reset(Scsi_Cmnd * SCpnt)
 				 */
 				continue;
 			}
-			if (SCtmp->host_scribble) {
-				kfree(SCtmp->host_scribble);
-				SCtmp->host_scribble = NULL;
-			}
+			kfree(SCtmp->host_scribble);
+			SCtmp->host_scribble = NULL;
 			HOSTDATA(SCpnt->device->host)->SCint[i] = NULL;
 			HOSTDATA(SCpnt->device->host)->mb[i].status = 0;
 		}
@@ -1565,10 +1559,8 @@ static int aha1542_host_reset(Scsi_Cmnd * SCpnt)
 				 */
 				continue;
 			}
-			if (SCtmp->host_scribble) {
-				kfree(SCtmp->host_scribble);
-				SCtmp->host_scribble = NULL;
-			}
+			kfree(SCtmp->host_scribble);
+			SCtmp->host_scribble = NULL;
 			HOSTDATA(SCpnt->device->host)->SCint[i] = NULL;
 			HOSTDATA(SCpnt->device->host)->mb[i].status = 0;
 		}
@@ -1711,10 +1703,8 @@ static int aha1542_old_reset(Scsi_Cmnd * SCpnt, unsigned int reset_flags)
 				Scsi_Cmnd *SCtmp;
 				SCtmp = HOSTDATA(SCpnt->host)->SCint[i];
 				SCtmp->result = DID_RESET << 16;
-				if (SCtmp->host_scribble) {
-					kfree(SCtmp->host_scribble);
-					SCtmp->host_scribble = NULL;
-				}
+				kfree(SCtmp->host_scribble);
+				SCtmp->host_scribble = NULL;
 				printk(KERN_WARNING "Sending DID_RESET for target %d\n", SCpnt->target);
 				SCtmp->scsi_done(SCpnt);
 
@@ -1757,10 +1747,8 @@ fail:
 						Scsi_Cmnd *SCtmp;
 						SCtmp = HOSTDATA(SCpnt->host)->SCint[i];
 						SCtmp->result = DID_RESET << 16;
-						if (SCtmp->host_scribble) {
-							kfree(SCtmp->host_scribble);
-							SCtmp->host_scribble = NULL;
-						}
+						kfree(SCtmp->host_scribble);
+						SCtmp->host_scribble = NULL;
 						printk(KERN_WARNING "Sending DID_RESET for target %d\n", SCpnt->target);
 						SCtmp->scsi_done(SCpnt);
 
diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
index 52b72d7..880e2d9 100644
--- a/drivers/scsi/aic7xxx_old.c
+++ b/drivers/scsi/aic7xxx_old.c
@@ -8492,8 +8492,7 @@ aic7xxx_free(struct aic7xxx_host *p)
                                      - scb_dma->dma_offset),
 			    scb_dma->dma_address);
       }
-      if (p->scb_data->scb_array[i]->kmalloc_ptr != NULL)
-        kfree(p->scb_data->scb_array[i]->kmalloc_ptr);
+      kfree(p->scb_data->scb_array[i]->kmalloc_ptr);
       p->scb_data->scb_array[i] = NULL;
     }
   
diff --git a/drivers/scsi/arm/queue.c b/drivers/scsi/arm/queue.c
index e6d1592..b10750b 100644
--- a/drivers/scsi/arm/queue.c
+++ b/drivers/scsi/arm/queue.c
@@ -91,8 +91,7 @@ void queue_free (Queue_t *queue)
 {
 	if (!list_empty(&queue->head))
 		printk(KERN_WARNING "freeing non-empty queue %p\n", queue);
-	if (queue->alloc)
-		kfree(queue->alloc);
+	kfree(queue->alloc);
 }
      
 
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index c44af57..c8a32cf 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4270,8 +4270,7 @@ static void adapter_sg_tables_free(struct AdapterCtlBlk *acb)
 	const unsigned srbs_per_page = PAGE_SIZE/SEGMENTX_LEN;
 
 	for (i = 0; i < DC395x_MAX_SRB_CNT; i += srbs_per_page)
-		if (acb->srb_array[i].segment_x)
-			kfree(acb->srb_array[i].segment_x);
+		kfree(acb->srb_array[i].segment_x);
 }
 
 
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 46d5571..c28e3ae 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -1037,18 +1037,10 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
 	if(pHba->msg_addr_virt != pHba->base_addr_virt){
 		iounmap(pHba->msg_addr_virt);
 	}
-	if(pHba->hrt) {
-		kfree(pHba->hrt);
-	}
-	if(pHba->lct){
-		kfree(pHba->lct);
-	}
-	if(pHba->status_block) {
-		kfree(pHba->status_block);
-	}
-	if(pHba->reply_pool){
-		kfree(pHba->reply_pool);
-	}
+	kfree(pHba->hrt);
+	kfree(pHba->lct);
+	kfree(pHba->status_block);
+	kfree(pHba->reply_pool);
 
 	for(d = pHba->devices; d ; d = next){
 		next = d->next;
@@ -2706,14 +2698,12 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
 	// If the command was successful, fill the fifo with our reply
 	// message packets
 	if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
-		kfree((void*)status);
+		kfree(status);
 		return -2;
 	}
-	kfree((void*)status);
+	kfree(status);
 
-	if(pHba->reply_pool != NULL){
-		kfree(pHba->reply_pool);
-	}
+	kfree(pHba->reply_pool);
 
 	pHba->reply_pool = (u32*)kmalloc(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, GFP_KERNEL|ADDR32);
 	if(!pHba->reply_pool){
@@ -2929,8 +2919,7 @@ static int adpt_i2o_build_sys_table(void)
 	sys_tbl_len = sizeof(struct i2o_sys_tbl) +	// Header + IOPs
 				(hba_count) * sizeof(struct i2o_sys_tbl_entry);
 
-	if(sys_tbl)
-		kfree(sys_tbl);
+	kfree(sys_tbl);
 
 	sys_tbl = kmalloc(sys_tbl_len, GFP_KERNEL|ADDR32);
 	if(!sys_tbl) {
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index b45a4c7..b3f9de8 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -2580,8 +2580,7 @@ static int eata2x_release(struct Scsi_Host *shost)
 	unsigned int i;
 
 	for (i = 0; i < shost->can_queue; i++)
-		if ((&ha->cp[i])->sglist)
-			kfree((&ha->cp[i])->sglist);
+		kfree((&ha->cp[i])->sglist);
 
 	for (i = 0; i < shost->can_queue; i++)
 		pci_unmap_single(ha->pdev, ha->cp[i].cp_dma_addr,
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index f04f328..c888af4 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -331,9 +331,9 @@ static int idescsi_check_condition(ide_drive_t *drive, struct request *failed_co
 	rq = kmalloc (sizeof (struct request), GFP_ATOMIC);
 	buf = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_ATOMIC);
 	if (pc == NULL || rq == NULL || buf == NULL) {
-		if (pc) kfree(pc);
-		if (rq) kfree(rq);
-		if (buf) kfree(buf);
+		kfree(buf);
+		kfree(rq);
+		kfree(pc);
 		return -ENOMEM;
 	}
 	memset (pc, 0, sizeof (idescsi_pc_t));
@@ -949,8 +949,8 @@ static int idescsi_queue (struct scsi_cmnd *cmd,
 	spin_lock_irq(host->host_lock);
 	return 0;
 abort:
-	if (pc) kfree (pc);
-	if (rq) kfree (rq);
+	kfree (pc);
+	kfree (rq);
 	cmd->result = DID_ERROR << 16;
 	done(cmd);
 	return 0;
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 68e5b2a..cd9b95d 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -4517,10 +4517,8 @@ ips_free(ips_ha_t * ha)
 			ha->enq = NULL;
 		}
 
-		if (ha->conf) {
-			kfree(ha->conf);
-			ha->conf = NULL;
-		}
+		kfree(ha->conf);
+		ha->conf = NULL;
 
 		if (ha->adapt) {
 			pci_free_consistent(ha->pcidev,
@@ -4538,15 +4536,11 @@ ips_free(ips_ha_t * ha)
 			ha->logical_drive_info = NULL;
 		}
 
-		if (ha->nvram) {
-			kfree(ha->nvram);
-			ha->nvram = NULL;
-		}
+		kfree(ha->nvram);
+		ha->nvram = NULL;
 
-		if (ha->subsys) {
-			kfree(ha->subsys);
-			ha->subsys = NULL;
-		}
+		kfree(ha->subsys);
+		ha->subsys = NULL;
 
 		if (ha->ioctl_data) {
 			pci_free_consistent(ha->pcidev, ha->ioctl_len,
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 08a0c00..bcc29ec 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -127,8 +127,7 @@ lpfc_prep_els_iocb(struct lpfc_hba * phba,
 	if (((pcmd = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
 	    ((pcmd->virt = lpfc_mbuf_alloc(phba,
 					   MEM_PRI, &(pcmd->phys))) == 0)) {
-		if (pcmd)
-			kfree(pcmd);
+		kfree(pcmd);
 
 		spin_lock_irq(phba->host->host_lock);
 		lpfc_sli_release_iocbq(phba, elsiocb);
@@ -145,8 +144,7 @@ lpfc_prep_els_iocb(struct lpfc_hba * phba,
 			prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 						     &prsp->phys);
 		if (prsp == 0 || prsp->virt == 0) {
-			if (prsp)
-				kfree(prsp);
+			kfree(prsp);
 			lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
 			kfree(pcmd);
 			spin_lock_irq(phba->host->host_lock);
@@ -172,8 +170,7 @@ lpfc_prep_els_iocb(struct lpfc_hba * phba,
 		lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
 		kfree(pcmd);
 		kfree(prsp);
-		if (pbuflist)
-			kfree(pbuflist);
+		kfree(pbuflist);
 		return NULL;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4e04470..c907238 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -894,8 +894,7 @@ lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
 		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 						&mp1->phys);
 		if (mp1 == 0 || mp1->virt == 0) {
-			if (mp1)
-				kfree(mp1);
+			kfree(mp1);
 			spin_lock_irq(phba->host->host_lock);
 			lpfc_sli_release_iocbq(phba, iocb);
 			spin_unlock_irq(phba->host->host_lock);
@@ -911,8 +910,7 @@ lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
 				mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 							    &mp2->phys);
 			if (mp2 == 0 || mp2->virt == 0) {
-				if (mp2)
-					kfree(mp2);
+				kfree(mp2);
 				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
 				kfree(mp1);
 				spin_lock_irq(phba->host->host_lock);
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 31c20cc..e3bc8d3 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -248,8 +248,7 @@ lpfc_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 
 	if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
 	    ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
-		if (mp)
-			kfree(mp);
+		kfree(mp);
 		mb->mbxCommand = MBX_READ_SPARM64;
 		/* READ_SPARAM: no buffers */
 		lpfc_printf_log(phba,
@@ -363,9 +362,7 @@ lpfc_reg_login(struct lpfc_hba * phba,
 	/* Get a buffer to hold NPorts Service Parameters */
 	if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) ||
 	    ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
-		if (mp)
-			kfree(mp);
-
+		kfree(mp);
 		mb->mbxCommand = MBX_REG_LOGIN64;
 		/* REG_LOGIN: no buffers */
 		lpfc_printf_log(phba,
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 5087100..e2c08c5 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -2269,11 +2269,8 @@ lpfc_sli_hba_down(struct lpfc_hba * phba)
 
 		INIT_LIST_HEAD(&(pring->txq));
 
-		if (pring->fast_lookup) {
-			kfree(pring->fast_lookup);
-			pring->fast_lookup = NULL;
-		}
-
+		kfree(pring->fast_lookup);
+		pring->fast_lookup = NULL;
 	}
 
 	spin_unlock_irqrestore(phba->host->host_lock, flags);
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index c9e743b..1a3d195 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -3937,9 +3937,8 @@ megaraid_sysfs_free_resources(adapter_t *adapter)
 {
 	mraid_device_t	*raid_dev = ADAP2RAIDDEV(adapter);
 
-	if (raid_dev->sysfs_uioc) kfree(raid_dev->sysfs_uioc);
-
-	if (raid_dev->sysfs_mbox64) kfree(raid_dev->sysfs_mbox64);
+	kfree(raid_dev->sysfs_uioc);
+	kfree(raid_dev->sysfs_mbox64);
 
 	if (raid_dev->sysfs_buffer) {
 		pci_free_consistent(adapter->pdev, PAGE_SIZE,
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index 37d110e..8f3ce04 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -995,17 +995,13 @@ pthru_dma_pool_error:
 
 memalloc_error:
 
-	if (adapter->kioc_list)
-		kfree(adapter->kioc_list);
-
-	if (adapter->mbox_list)
-		kfree(adapter->mbox_list);
+	kfree(adapter->kioc_list);
+	kfree(adapter->mbox_list);
 
 	if (adapter->pthru_dma_pool)
 		pci_pool_destroy(adapter->pthru_dma_pool);
 
-	if (adapter)
-		kfree(adapter);
+	kfree(adapter);
 
 	return rval;
 }
@@ -1157,7 +1153,6 @@ mraid_mm_free_adp_resources(mraid_mmadp_t *adp)
 	}
 
 	kfree(adp->kioc_list);
-
 	kfree(adp->mbox_list);
 
 	pci_pool_destroy(adp->pthru_dma_pool);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 290a6b9..72d9090 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1977,8 +1977,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha)
 	}
 
 cleanup_allocation:
-	if (new_fcport)
-		kfree(new_fcport);
+	kfree(new_fcport);
 
 	if (rval != QLA_SUCCESS) {
 		DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
@@ -2348,8 +2347,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
 	/* Allocate temporary fcport for any new fcports discovered. */
 	new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
 	if (new_fcport == NULL) {
-		if (swl)
-			kfree(swl);
+		kfree(swl);
 		return (QLA_MEMORY_ALLOC_FAILED);
 	}
 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
@@ -2485,19 +2483,15 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
 		nxt_d_id.b24 = new_fcport->d_id.b24;
 		new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
 		if (new_fcport == NULL) {
-			if (swl)
-				kfree(swl);
+			kfree(swl);
 			return (QLA_MEMORY_ALLOC_FAILED);
 		}
 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
 		new_fcport->d_id.b24 = nxt_d_id.b24;
 	}
 
-	if (swl)
-		kfree(swl);
-
-	if (new_fcport)
-		kfree(new_fcport);
+	kfree(swl);
+	kfree(new_fcport);
 
 	if (!list_empty(new_fcports))
 		ha->device_flags |= DFLG_FABRIC_DEVICES;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4f30a37..62e3f34 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -476,8 +476,7 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos)
 	sg_finish_rem_req(srp);
 	retval = count;
 free_old_hdr:
-	if (old_hdr)
-		kfree(old_hdr);
+	kfree(old_hdr);
 	return retval;
 }
 
@@ -1703,10 +1702,8 @@ exit_sg(void)
 	sg_sysfs_valid = 0;
 	unregister_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0),
 				 SG_MAX_DEVS);
-	if (sg_dev_arr != NULL) {
-		kfree((char *) sg_dev_arr);
-		sg_dev_arr = NULL;
-	}
+	kfree((char *)sg_dev_arr);
+	sg_dev_arr = NULL;
 	sg_dev_max = 0;
 }
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 6b85f84..770c432 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4107,8 +4107,7 @@ out_free_tape:
 	write_unlock(&st_dev_arr_lock);
 out_put_disk:
 	put_disk(disk);
-	if (tpnt)
-		kfree(tpnt);
+	kfree(tpnt);
 out_buffer_free:
 	kfree(buffer);
 out:
diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c
index cfab8f1..1ce29ba 100644
--- a/drivers/scsi/u14-34f.c
+++ b/drivers/scsi/u14-34f.c
@@ -1953,11 +1953,11 @@ static int u14_34f_release(struct Scsi_Host *shpnt) {
 
    for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++);
 
-   if (sh[j] == NULL) panic("%s: release, invalid Scsi_Host pointer.\n",
-                            driver_name);
+   if (sh[j] == NULL)
+      panic("%s: release, invalid Scsi_Host pointer.\n", driver_name);
 
    for (i = 0; i < sh[j]->can_queue; i++)
-      if ((&HD(j)->cp[i])->sglist) kfree((&HD(j)->cp[i])->sglist);
+      kfree((&HD(j)->cp[i])->sglist);
 
    for (i = 0; i < sh[j]->can_queue; i++)
       pci_unmap_single(HD(j)->pdev, HD(j)->cp[i].cp_dma_addr,
@@ -1965,7 +1965,8 @@ static int u14_34f_release(struct Scsi_Host *shpnt) {
 
    free_irq(sh[j]->irq, &sha[j]);
 
-   if (sh[j]->dma_channel != NO_DMA) free_dma(sh[j]->dma_channel);
+   if (sh[j]->dma_channel != NO_DMA)
+      free_dma(sh[j]->dma_channel);
 
    release_region(sh[j]->io_port, sh[j]->n_io_port);
    scsi_unregister(sh[j]);