24 files changed, 83 insertions, 151 deletions

diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 10dd695a1dd9..27ec12c1fab0 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -118,11 +118,9 @@ static int acpi_container_remove(struct acpi_device *device, int type)
 {
         acpi_status status = AE_OK;
         struct acpi_container *pc = NULL;
-        pc = (struct acpi_container *)acpi_driver_data(device);
-
-        if (pc)
-                kfree(pc);
 
+        pc = (struct acpi_container *)acpi_driver_data(device);
+        kfree(pc);
         return status;
 }
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c6db591479de..23e2c6968a11 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -28,8 +28,7 @@ static int acpi_bus_trim(struct acpi_device *start, int rmdevice);
 static void acpi_device_release(struct kobject *kobj)
 {
         struct acpi_device *dev = container_of(kobj, struct acpi_device, kobj);
-        if (dev->pnp.cid_list)
-                kfree(dev->pnp.cid_list);
+        kfree(dev->pnp.cid_list);
         kfree(dev);
 }
 
@@ -1117,8 +1116,7 @@ acpi_add_single_object(struct acpi_device **child,
         if (!result)
                 *child = device;
         else {
-                if (device->pnp.cid_list)
-                        kfree(device->pnp.cid_list);
+                kfree(device->pnp.cid_list);
                 kfree(device);
         }
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index e383d6109ae1..f051b151580d 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -334,8 +334,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
         return_VALUE(0);
 
       err:
-        if (buffer.pointer)
-                kfree(buffer.pointer);
+        kfree(buffer.pointer);
 
         return_VALUE(status);
 }
@@ -1488,8 +1487,7 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
         }
         active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END;
 
-        if (video->attached_array)
-                kfree(video->attached_array);
+        kfree(video->attached_array);
 
         video->attached_array = active_device_list;
         video->attached_count = count;
@@ -1645,8 +1643,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
                         printk(KERN_WARNING PREFIX
                                "hhuuhhuu bug in acpi video driver.\n");
 
-                if (data->brightness)
-                        kfree(data->brightness);
+                kfree(data->brightness);
 
                 kfree(data);
         }
@@ -1831,8 +1828,7 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
         acpi_video_bus_put_devices(video);
         acpi_video_bus_remove_fs(device);
 
-        if (video->attached_array)
-                kfree(video->attached_array);
+        kfree(video->attached_array);
         kfree(video);
 
         return_VALUE(0);
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 3760edfdc65c..70eaa5c7ac08 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -417,14 +417,12 @@ static void DAC960_DestroyAuxiliaryStructures(DAC960_Controller_T *Controller)
             * Remember the beginning of the group, but don't free it
             * until we've reached the beginning of the next group.
             */
-           if (CommandGroup != NULL)
-                kfree(CommandGroup);
-            CommandGroup = Command;
+           kfree(CommandGroup);
+           CommandGroup = Command;
       }
       Controller->Commands[i] = NULL;
     }
-  if (CommandGroup != NULL)
-      kfree(CommandGroup);
+  kfree(CommandGroup);
 
   if (Controller->CombinedStatusBuffer != NULL)
     {
@@ -435,30 +433,23 @@ static void DAC960_DestroyAuxiliaryStructures(DAC960_Controller_T *Controller)
 
   if (ScatterGatherPool != NULL)
         pci_pool_destroy(ScatterGatherPool);
-  if (Controller->FirmwareType == DAC960_V1_Controller) return;
+  if (Controller->FirmwareType == DAC960_V1_Controller)
+        return;
 
   if (RequestSensePool != NULL)
         pci_pool_destroy(RequestSensePool);
 
-  for (i = 0; i < DAC960_MaxLogicalDrives; i++)
-    if (Controller->V2.LogicalDeviceInformation[i] != NULL)
-      {
+  for (i = 0; i < DAC960_MaxLogicalDrives; i++) {
         kfree(Controller->V2.LogicalDeviceInformation[i]);
         Controller->V2.LogicalDeviceInformation[i] = NULL;
-      }
+  }
 
   for (i = 0; i < DAC960_V2_MaxPhysicalDevices; i++)
     {
-      if (Controller->V2.PhysicalDeviceInformation[i] != NULL)
-        {
-          kfree(Controller->V2.PhysicalDeviceInformation[i]);
-          Controller->V2.PhysicalDeviceInformation[i] = NULL;
-        }
-      if (Controller->V2.InquiryUnitSerialNumber[i] != NULL)
-        {
-          kfree(Controller->V2.InquiryUnitSerialNumber[i]);
-          Controller->V2.InquiryUnitSerialNumber[i] = NULL;
-        }
+      kfree(Controller->V2.PhysicalDeviceInformation[i]);
+      Controller->V2.PhysicalDeviceInformation[i] = NULL;
+      kfree(Controller->V2.InquiryUnitSerialNumber[i]);
+      Controller->V2.InquiryUnitSerialNumber[i] = NULL;
     }
 }
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 486b6e1c7dfb..a97c80b57737 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1096,14 +1096,11 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 cleanup1:
                 if (buff) {
                         for(i=0; i<sg_used; i++)
-                                if(buff[i] != NULL)
-                                        kfree(buff[i]);
+                                kfree(buff[i]);
                         kfree(buff);
                 }
-                if (buff_size)
-                        kfree(buff_size);
-                if (ioc)
-                        kfree(ioc);
+                kfree(buff_size);
+                kfree(ioc);
                 return(status);
         }
         default:
@@ -3034,8 +3031,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
         return(1);
 
 clean4:
-        if(hba[i]->cmd_pool_bits)
-                kfree(hba[i]->cmd_pool_bits);
+        kfree(hba[i]->cmd_pool_bits);
         if(hba[i]->cmd_pool)
                 pci_free_consistent(hba[i]->pdev,
                         NR_CMDS * sizeof(CommandList_struct),
diff --git a/drivers/fc4/fc.c b/drivers/fc4/fc.c
index e375995a2e9b..5c8943509cc1 100644
--- a/drivers/fc4/fc.c
+++ b/drivers/fc4/fc.c
@@ -554,8 +554,8 @@ int fcp_initialize(fc_channel *fcchain, int count)
         l->logi = kzalloc (count * 3 * sizeof(logi), GFP_KERNEL);
         l->fcmds = kzalloc (count * sizeof(fcp_cmnd), GFP_KERNEL);
         if (!l->logi || !l->fcmds) {
-                if (l->logi) kfree (l->logi);
-                if (l->fcmds) kfree (l->fcmds);
+                kfree (l->logi);
+                kfree (l->fcmds);
                 kfree (l);
                 printk ("FC: Cannot allocate DMA memory for initialization\n");
                 return -ENOMEM;
@@ -674,7 +674,6 @@ int fcp_forceoffline(fc_channel *fcchain, int count)
         atomic_set (&l.todo, count);
         l.fcmds = kzalloc (count * sizeof(fcp_cmnd), GFP_KERNEL);
         if (!l.fcmds) {
-                kfree (l.fcmds);
                 printk ("FC: Cannot allocate memory for forcing offline\n");
                 return -ENOMEM;
         }
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index 9265f32122fa..ffdb3a03e2b5 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -976,11 +976,9 @@ w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 ERROR_SC_3:
         i2c_detach_client(data->lm75[0]);
 ERROR_SC_2:
-        if (data->lm75[1])
-                kfree(data->lm75[1]);
+        kfree(data->lm75[1]);
 ERROR_SC_1:
-        if (data->lm75[0])
-                kfree(data->lm75[0]);
+        kfree(data->lm75[0]);
 ERROR_SC_0:
         return err;
 }
diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index f51ab652300a..56c7d987590f 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -245,10 +245,8 @@ static void __exit amd756_s4882_exit(void)
                 kfree(s4882_adapter);
                 s4882_adapter = NULL;
         }
-        if (s4882_algo) {
-                kfree(s4882_algo);
-                s4882_algo = NULL;
-        }
+        kfree(s4882_algo);
+        s4882_algo = NULL;
 
         /* Restore physical bus */
         if (i2c_add_adapter(&amd756_smbus))
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 74d2ab0d901e..c2f47923d174 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -3292,12 +3292,9 @@ static void ide_cd_release(struct kref *kref)
         ide_drive_t *drive = info->drive;
         struct gendisk *g = info->disk;
 
-        if (info->buffer != NULL)
-                kfree(info->buffer);
-        if (info->toc != NULL)
-                kfree(info->toc);
-        if (info->changer_info != NULL)
-                kfree(info->changer_info);
+        kfree(info->buffer);
+        kfree(info->toc);
+        kfree(info->changer_info);
         if (devinfo->handle == drive && unregister_cdrom(devinfo))
                 printk(KERN_ERR "%s: %s failed to unregister device from the cdrom "
                                 "driver.\n", __FUNCTION__, drive->name);
@@ -3487,12 +3484,9 @@ static int ide_cd_probe(struct device *dev)
         if (ide_cdrom_setup(drive)) {
                 struct cdrom_device_info *devinfo = &info->devinfo;
                 ide_unregister_subdriver(drive, &ide_cdrom_driver);
-                if (info->buffer != NULL)
-                        kfree(info->buffer);
-                if (info->toc != NULL)
-                        kfree(info->toc);
-                if (info->changer_info != NULL)
-                        kfree(info->changer_info);
+                kfree(info->buffer);
+                kfree(info->toc);
+                kfree(info->changer_info);
                 if (devinfo->handle == drive && unregister_cdrom(devinfo))
                         printk (KERN_ERR "%s: ide_cdrom_cleanup failed to unregister device from the cdrom driver.\n", drive->name);
                 kfree(info);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index e6695e5df5bd..02167a5b751d 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1315,10 +1315,8 @@ static void drive_release_dev (struct device *dev)
                 drive->devfs_name[0] = '\0';
         }
         ide_remove_drive_from_hwgroup(drive);
-        if (drive->id != NULL) {
-                kfree(drive->id);
-                drive->id = NULL;
-        }
+        kfree(drive->id);
+        drive->id = NULL;
         drive->present = 0;
         /* Messed up locking ... */
         spin_unlock_irq(&ide_lock);
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 9c3b4f615621..7ec18fa3b5ff 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -646,10 +646,8 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
         }
 abort:
         kfree(req_task);
-        if (outbuf != NULL)
-                kfree(outbuf);
-        if (inbuf != NULL)
-                kfree(inbuf);
+        kfree(outbuf);
+        kfree(inbuf);
 
 //      printk("IDE Taskfile ioctl ended. rc = %i\n", err);
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 1bbf67882ae5..9fe19808d815 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -888,8 +888,7 @@ static int __ide_add_setting(ide_drive_t *drive, const char *name, int rw, int r
         return 0;
 abort:
         up(&ide_setting_sem);
-        if (setting)
-                kfree(setting);
+        kfree(setting);
         return -1;
 }
 
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 3d8175e5f054..41d6b4017acb 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -508,8 +508,7 @@ static void unregister_mad_agent(struct ib_mad_agent_private *mad_agent_priv)
         wait_event(mad_agent_priv->wait,
                    !atomic_read(&mad_agent_priv->refcount));
 
-        if (mad_agent_priv->reg_req)
-                kfree(mad_agent_priv->reg_req);
+        kfree(mad_agent_priv->reg_req);
         ib_dereg_mr(mad_agent_priv->agent.mr);
         kfree(mad_agent_priv);
 }
@@ -2500,8 +2499,7 @@ error:
 static void destroy_mad_qp(struct ib_mad_qp_info *qp_info)
 {
         ib_destroy_qp(qp_info->qp);
-        if (qp_info->snoop_table)
-                kfree(qp_info->snoop_table);
+        kfree(qp_info->snoop_table);
 }
 
 /*
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 4015a91f4b6e..948c1cc01bc9 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -271,8 +271,7 @@ static int uinput_alloc_device(struct file *file, const char __user *buffer, siz
                 goto exit;
         }
 
-        if (dev->name)
-                kfree(dev->name);
+        kfree(dev->name);
 
         size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
         dev->name = name = kmalloc(size, GFP_KERNEL);
@@ -372,11 +371,8 @@ static int uinput_burn_device(struct uinput_device *udev)
         if (test_bit(UIST_CREATED, &udev->state))
                 uinput_destroy_device(udev);
 
-        if (udev->dev->name)
-                kfree(udev->dev->name);
-        if (udev->dev->phys)
-                kfree(udev->dev->phys);
-
+        kfree(udev->dev->name);
+        kfree(udev->dev->phys);
         kfree(udev->dev);
         kfree(udev);
 
diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index 8f02c155fdc0..c0b46bceb5df 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -857,8 +857,7 @@ adbhid_input_register(int id, int default_id, int original_handler_id,
 static void adbhid_input_unregister(int id)
 {
         input_unregister_device(adbhid[id]->input);
-        if (adbhid[id]->keycode)
-                kfree(adbhid[id]->keycode);
+        kfree(adbhid[id]->keycode);
         kfree(adbhid[id]);
         adbhid[id] = NULL;
 }
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c
index 4ff67e7363d9..e954b8354fef 100644
--- a/drivers/mmc/wbsd.c
+++ b/drivers/mmc/wbsd.c
@@ -1602,8 +1602,7 @@ static void __devexit wbsd_release_dma(struct wbsd_host* host)
         if (host->dma_addr)
                 dma_unmap_single(host->mmc->dev, host->dma_addr, WBSD_DMA_SIZE,
                         DMA_BIDIRECTIONAL);
-        if (host->dma_buffer)
-                kfree(host->dma_buffer);
+        kfree(host->dma_buffer);
         if (host->dma >= 0)
                 free_dma(host->dma);
 
diff --git a/drivers/parport/probe.c b/drivers/parport/probe.c
index 6e6f42d01e64..4b48b31ec235 100644
--- a/drivers/parport/probe.c
+++ b/drivers/parport/probe.c
@@ -78,17 +78,15 @@ static void parse_data(struct parport *port, int device, char *str)
                                 u++;
                         }
                         if (!strcmp(p, "MFG") || !strcmp(p, "MANUFACTURER")) {
-                                if (info->mfr)
-                                        kfree (info->mfr);
+                                kfree(info->mfr);
                                 info->mfr = kstrdup(sep, GFP_KERNEL);
                         } else if (!strcmp(p, "MDL") || !strcmp(p, "MODEL")) {
-                                if (info->model)
-                                        kfree (info->model);
+                                kfree(info->model);
                                 info->model = kstrdup(sep, GFP_KERNEL);
                         } else if (!strcmp(p, "CLS") || !strcmp(p, "CLASS")) {
                                 int i;
-                                if (info->class_name)
-                                        kfree (info->class_name);
+
+                                kfree(info->class_name);
                                 info->class_name = kstrdup(sep, GFP_KERNEL);
                                 for (u = sep; *u; u++)
                                         *u = toupper(*u);
@@ -102,21 +100,22 @@ static void parse_data(struct parport *port, int device, char *str)
                                 info->class = PARPORT_CLASS_OTHER;
                         } else if (!strcmp(p, "CMD") ||
                                    !strcmp(p, "COMMAND SET")) {
-                                if (info->cmdset)
-                                        kfree (info->cmdset);
+                                kfree(info->cmdset);
                                 info->cmdset = kstrdup(sep, GFP_KERNEL);
                                 /* if it speaks printer language, it's
                                    probably a printer */
                                 if (strstr(sep, "PJL") || strstr(sep, "PCL"))
                                         guessed_class = PARPORT_CLASS_PRINTER;
                         } else if (!strcmp(p, "DES") || !strcmp(p, "DESCRIPTION")) {
-                                if (info->description)
-                                        kfree (info->description);
+                                kfree(info->description);
                                 info->description = kstrdup(sep, GFP_KERNEL);
                         }
                 }
         rock_on:
-                if (q) p = q+1; else p=NULL;
+                if (q)
+                        p = q + 1;
+                else
+                        p = NULL;
         }
 
         /* If the device didn't tell us its class, maybe we have managed to
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index ae7becf7efa5..9cb3ab156b09 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -202,16 +202,11 @@ static void free_port (struct parport *port)
         list_del(&port->full_list);
         spin_unlock(&full_list_lock);
         for (d = 0; d < 5; d++) {
-                if (port->probe_info[d].class_name)
-                        kfree (port->probe_info[d].class_name);
-                if (port->probe_info[d].mfr)
-                        kfree (port->probe_info[d].mfr);
-                if (port->probe_info[d].model)
-                        kfree (port->probe_info[d].model);
-                if (port->probe_info[d].cmdset)
-                        kfree (port->probe_info[d].cmdset);
-                if (port->probe_info[d].description)
-                        kfree (port->probe_info[d].description);
+                kfree(port->probe_info[d].class_name);
+                kfree(port->probe_info[d].mfr);
+                kfree(port->probe_info[d].model);
+                kfree(port->probe_info[d].cmdset);
+                kfree(port->probe_info[d].description);
         }
 
         kfree(port->name);
@@ -618,9 +613,9 @@ parport_register_device(struct parport *port, const char *name,
         return tmp;
 
  out_free_all:
-        kfree (tmp->state);
+        kfree(tmp->state);
  out_free_pardevice:
-        kfree (tmp);
+        kfree(tmp);
  out:
         parport_put_port (port);
         module_put(port->ops->owner);
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 93e39c4096a9..00b81a7bdd26 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -259,8 +259,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num
                sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
         // Make sure I got at least one entry
         if (len == 0) {
-                if (PCIIRQRoutingInfoLength != NULL)
-                        kfree(PCIIRQRoutingInfoLength );
+                kfree(PCIIRQRoutingInfoLength );
                 return -1;
         }
 
@@ -275,8 +274,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num
                         ctrl->pci_bus->number = tbus;
                         pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work);
                         if (!nobridge || (work == 0xffffffff)) {
-                                if (PCIIRQRoutingInfoLength != NULL)
-                                        kfree(PCIIRQRoutingInfoLength );
+                                kfree(PCIIRQRoutingInfoLength );
                                 return 0;
                         }
 
@@ -289,20 +287,17 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num
                                 dbg("Scan bus for Non Bridge: bus %d\n", tbus);
                                 if (PCI_ScanBusForNonBridge(ctrl, tbus, dev_num) == 0) {
                                         *bus_num = tbus;
-                                        if (PCIIRQRoutingInfoLength != NULL)
-                                                kfree(PCIIRQRoutingInfoLength );
+                                        kfree(PCIIRQRoutingInfoLength );
                                         return 0;
                                 }
                         } else {
-                                if (PCIIRQRoutingInfoLength != NULL)
-                                        kfree(PCIIRQRoutingInfoLength );
+                                kfree(PCIIRQRoutingInfoLength );
                                 return 0;
                         }
 
                 }
         }
-        if (PCIIRQRoutingInfoLength != NULL)
-                kfree(PCIIRQRoutingInfoLength );
+        kfree(PCIIRQRoutingInfoLength );
         return -1;
 }
 
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 3afb682255a0..2dc3e611a9a3 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -334,10 +334,8 @@ void destroy_cis_cache(struct pcmcia_socket *s)
         /*
          * If there was a fake CIS, destroy that as well.
          */
-        if (s->fake_cis) {
-                kfree(s->fake_cis);
-                s->fake_cis = NULL;
-        }
+        kfree(s->fake_cis);
+        s->fake_cis = NULL;
 }
 EXPORT_SYMBOL(destroy_cis_cache);
 
@@ -386,10 +384,8 @@ int verify_cis_cache(struct pcmcia_socket *s)
 
 int pcmcia_replace_cis(struct pcmcia_socket *s, cisdump_t *cis)
 {
-    if (s->fake_cis != NULL) {
-        kfree(s->fake_cis);
-        s->fake_cis = NULL;
-    }
+    kfree(s->fake_cis);
+    s->fake_cis = NULL;
     if (cis->Length > CISTPL_MAX_CIS_SIZE)
         return CS_BAD_SIZE;
     s->fake_cis = kmalloc(cis->Length, GFP_KERNEL);
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index d5e76423a0ee..234cdca6fe13 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -331,10 +331,8 @@ static void shutdown_socket(struct pcmcia_socket *s)
         cb_free(s);
 #endif
         s->functions = 0;
-        if (s->config) {
-                kfree(s->config);
-                s->config = NULL;
-        }
+        kfree(s->config);
+        s->config = NULL;
 
         {
                 int status;
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index b0cc3c2588fd..ba56762b05f6 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -1125,10 +1125,9 @@ out_deregister:
         misc_deregister(&envctrl_dev);
 out_iounmap:
         iounmap(i2c);
-        for (i = 0; i < ENVCTRL_MAX_CPU * 2; i++) {
-                if (i2c_childlist[i].tables)
-                        kfree(i2c_childlist[i].tables);
-        }
+        for (i = 0; i < ENVCTRL_MAX_CPU * 2; i++)
+                kfree(i2c_childlist[i].tables);
+
         return err;
 }
 
@@ -1141,10 +1140,8 @@ static void __exit envctrl_cleanup(void)
         iounmap(i2c);
         misc_deregister(&envctrl_dev);
 
-        for (i = 0; i < ENVCTRL_MAX_CPU * 2; i++) {
-                if (i2c_childlist[i].tables)
-                        kfree(i2c_childlist[i].tables);
-        }
+        for (i = 0; i < ENVCTRL_MAX_CPU * 2; i++)
+                kfree(i2c_childlist[i].tables);
 }
 
 module_init(envctrl_init);
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 1d148c5a5a4b..c0c974b1afaa 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -2057,8 +2057,7 @@ static void i810fb_release_resource(struct fb_info *info,
                 iounmap(par->mmio_start_virtual);
         if (par->aperture.virtual)
                 iounmap(par->aperture.virtual);
-        if (par->edid)
-                kfree(par->edid);
+        kfree(par->edid);
         if (par->res_flags & FRAMEBUFFER_REQ)
                 release_mem_region(par->aperture.physical,
                                    par->aperture.size);
diff --git a/drivers/w1/w1_ds2433.c b/drivers/w1/w1_ds2433.c
index 279e0e0363d6..1e3d98aac12d 100644
--- a/drivers/w1/w1_ds2433.c
+++ b/drivers/w1/w1_ds2433.c
@@ -299,10 +299,8 @@ static int w1_f23_add_slave(struct w1_slave *sl)
 static void w1_f23_remove_slave(struct w1_slave *sl)
 {
 #ifdef CONFIG_W1_F23_CRC
-        if (sl->family_data) {
-                kfree(sl->family_data);
-                sl->family_data = NULL;
-        }
+        kfree(sl->family_data);
+        sl->family_data = NULL;
 #endif  /* CONFIG_W1_F23_CRC */
         sysfs_remove_bin_file(&sl->dev.kobj, &w1_f23_bin_attr);
 }