diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 8dcade63..3a799b9 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -549,7 +549,7 @@
 	acpi_gbl_global_lock_acquired = FALSE;
 
 	/* Release the local GL mutex */
-	acpi_ev_global_lock_thread_id = 0;
+	acpi_ev_global_lock_thread_id = NULL;
 	acpi_ev_global_lock_acquired = 0;
 	acpi_os_release_mutex(acpi_gbl_global_lock_mutex);
 	return_ACPI_STATUS(status);
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index f5d8872..882c36e 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -329,7 +329,7 @@
 	ae->dev = dev;
 	ae->irq = priv->ata_irq;
 
-	aio->cmd_addr		= 0;	/* Don't have a classic reg block */
+	aio->cmd_addr		= NULL;	/* Don't have a classic reg block */
 	aio->altstatus_addr	= &priv->ata_regs->tf_control;
 	aio->ctl_addr		= &priv->ata_regs->tf_control;
 	aio->data_addr		= &priv->ata_regs->tf_data;
diff --git a/drivers/char/watchdog/machzwd.c b/drivers/char/watchdog/machzwd.c
index 4a328ba..81fb3de 100644
--- a/drivers/char/watchdog/machzwd.c
+++ b/drivers/char/watchdog/machzwd.c
@@ -324,7 +324,7 @@
 			return put_user(0, p);
 
 		case WDIOC_KEEPALIVE:
-			zf_ping(0);
+			zf_ping(NULL);
 			break;
 
 		default:
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 1ff5138e..9916cf3 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -1248,10 +1248,10 @@
 	ret |= pvr2_write_register(hdw, 0xaa18, 0x00840000); /*unknown*/
 	LOCK_TAKE(hdw->ctl_lock); do {
 		hdw->cmd_buffer[0] = FX2CMD_FWPOST1;
-		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,1,0,0);
+		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,1,NULL,0);
 		hdw->cmd_buffer[0] = FX2CMD_MEMSEL;
 		hdw->cmd_buffer[1] = 0;
-		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,0,0);
+		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,NULL,0);
 	} while (0); LOCK_GIVE(hdw->ctl_lock);
 
 	if (ret) {
@@ -1320,7 +1320,7 @@
 	LOCK_TAKE(hdw->ctl_lock); do {
 		hdw->cmd_buffer[0] = FX2CMD_MEMSEL;
 		hdw->cmd_buffer[1] = 0;
-		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,0,0);
+		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,NULL,0);
 	} while (0); LOCK_GIVE(hdw->ctl_lock);
 
 	if (ret) {
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
index 5313d34..25d3830 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
@@ -808,11 +808,11 @@
 {
 	if (vp->dev_video) {
 		pvr2_v4l2_dev_destroy(vp->dev_video);
-		vp->dev_video = 0;
+		vp->dev_video = NULL;
 	}
 	if (vp->dev_radio) {
 		pvr2_v4l2_dev_destroy(vp->dev_radio);
-		vp->dev_radio = 0;
+		vp->dev_radio = NULL;
 	}
 
 	pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp);
@@ -1138,7 +1138,7 @@
 {
 	int mindevnum;
 	int unit_number;
-	int *nr_ptr = 0;
+	int *nr_ptr = NULL;
 	dip->v4lp = vp;
 
 
diff --git a/drivers/ps3/vuart.c b/drivers/ps3/vuart.c
index 1adf186..6c12744 100644
--- a/drivers/ps3/vuart.c
+++ b/drivers/ps3/vuart.c
@@ -952,7 +952,7 @@
 	kfree(dev->priv);
 	dev->priv = NULL;
 fail_alloc:
-	vuart_bus_priv.devices[port_number] = 0;
+	vuart_bus_priv.devices[port_number] = NULL;
 fail_match:
 	up(&vuart_bus_priv.probe_mutex);
 	dev_dbg(&dev->core, "%s:%d failed\n", __func__, __LINE__);
@@ -978,7 +978,7 @@
 		dev_dbg(&dev->core, "%s:%d: %s no remove method\n", __func__,
 			__LINE__, dev->core.bus_id);
 
-	vuart_bus_priv.devices[dev->priv->port_number] = 0;
+	vuart_bus_priv.devices[dev->priv->port_number] = NULL;
 
 	if (--vuart_bus_priv.use_count == 0) {
 		BUG();
diff --git a/drivers/video/backlight/progear_bl.c b/drivers/video/backlight/progear_bl.c
index 7022693..836ab4d 100644
--- a/drivers/video/backlight/progear_bl.c
+++ b/drivers/video/backlight/progear_bl.c
@@ -65,13 +65,13 @@
 	u8 temp;
 	struct backlight_device *progear_backlight_device;
 
-	pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, 0);
+	pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL);
 	if (!pmu_dev) {
 		printk("ALI M7101 PMU not found.\n");
 		return -ENODEV;
 	}
 
-	sb_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, 0);
+	sb_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 	if (!sb_dev) {
 		printk("ALI 1533 SB not found.\n");
 		pci_dev_put(pmu_dev);