diff --git a/reactos/drivers/bus/acpi/compbatt/comppnp.c b/reactos/drivers/bus/acpi/compbatt/comppnp.c
index 164ea6f6274..250a4761e31 100644
--- a/reactos/drivers/bus/acpi/compbatt/comppnp.c
+++ b/reactos/drivers/bus/acpi/compbatt/comppnp.c
@@ -436,7 +436,7 @@ CompBattPnpDispatch(IN PDEVICE_OBJECT DeviceObject,
                     DbgPrint("CompBatt: Couldn't register for PnP notification - %x\n",
                              Status);
             }
-        
+             break;
         case IRP_MN_CANCEL_STOP_DEVICE:
         
             /* Explicitly say ok */
diff --git a/reactos/drivers/network/dd/ne2000/ne2000/8390.c b/reactos/drivers/network/dd/ne2000/ne2000/8390.c
index d7ceafba106..03adcab94bf 100644
--- a/reactos/drivers/network/dd/ne2000/ne2000/8390.c
+++ b/reactos/drivers/network/dd/ne2000/ne2000/8390.c
@@ -1361,7 +1361,7 @@ VOID NTAPI MiniportHandleInterrupt(
             NICUpdateCounters(Adapter);
 
             Adapter->ReceiveError = TRUE;
-
+            break;
         case ISR_PRX:
             NDIS_DbgPrint(MID_TRACE, ("Receive interrupt.\n"));
 
@@ -1380,7 +1380,7 @@ VOID NTAPI MiniportHandleInterrupt(
             NICUpdateCounters(Adapter);
 
             Adapter->TransmitError = TRUE;
-
+            break;
         case ISR_PTX:
             NDIS_DbgPrint(MID_TRACE, ("Transmit interrupt.\n"));
 
diff --git a/reactos/drivers/network/tcpip/datalink/lan.c b/reactos/drivers/network/tcpip/datalink/lan.c
index 3883235b6a0..2a252b087f0 100644
--- a/reactos/drivers/network/tcpip/datalink/lan.c
+++ b/reactos/drivers/network/tcpip/datalink/lan.c
@@ -287,6 +287,7 @@ VOID LanReceiveWorker( PVOID Context ) {
     case ETYPE_ARP:
 	TI_DbgPrint(MID_TRACE,("Received ARP Packet\n"));
 	ARPReceive(Adapter->Context, &IPPacket);
+    break;
     default:
         IPPacket.Free(&IPPacket);
 	break;
diff --git a/reactos/drivers/storage/class/disk/disk.c b/reactos/drivers/storage/class/disk/disk.c
index 5d62cfac63a..a2ee02cc155 100644
--- a/reactos/drivers/storage/class/disk/disk.c
+++ b/reactos/drivers/storage/class/disk/disk.c
@@ -1908,8 +1908,9 @@ Return Value:
 
                 case EXECUTE_OFFLINE_DIAGS:
                     controlCode = IOCTL_SCSI_MINIPORT_EXECUTE_OFFLINE_DIAGS;
-
-                default:
+                    break;
+      
+          default:
                     status = STATUS_INVALID_PARAMETER;
                     break;
             }
diff --git a/reactos/drivers/storage/classpnp/class.c b/reactos/drivers/storage/classpnp/class.c
index 0a1c28ea9c5..bf73d776523 100644
--- a/reactos/drivers/storage/classpnp/class.c
+++ b/reactos/drivers/storage/classpnp/class.c
@@ -3502,6 +3502,7 @@ ClassInterpretSenseInfo(
                 }
 
                 }
+                break;
             }
 
             default: {
diff --git a/reactos/drivers/storage/ide/uniata/id_init.cpp b/reactos/drivers/storage/ide/uniata/id_init.cpp
index 6dce17cfdb5..526a60d2119 100644
--- a/reactos/drivers/storage/ide/uniata/id_init.cpp
+++ b/reactos/drivers/storage/ide/uniata/id_init.cpp
@@ -113,6 +113,7 @@ UniataChipDetectChannels(
             KdPrint2((PRINT_PREFIX "New ATI PATA 1 chan\n"));
             break;
         }
+        break;
     case ATA_SILICON_IMAGE_ID:
 
         if(ChipFlags & SIIBUG) {
diff --git a/reactos/drivers/usb/nt4compat/usbdriver/ehci.c b/reactos/drivers/usb/nt4compat/usbdriver/ehci.c
index 0453fb9727a..0c03e323c07 100644
--- a/reactos/drivers/usb/nt4compat/usbdriver/ehci.c
+++ b/reactos/drivers/usb/nt4compat/usbdriver/ehci.c
@@ -6006,6 +6006,7 @@ ehci_isr_removing_urb(PEHCI_DEV ehci, PURB purb, BOOLEAN doorbell_rings, ULONG c
                 default:
                     TRAP();
             }
+            break;
         }
         case URB_FLAG_STATE_DOORBELL:
         {
diff --git a/reactos/drivers/usb/nt4compat/usbdriver/umss.c b/reactos/drivers/usb/nt4compat/usbdriver/umss.c
index 4690fa97ef8..6014606620c 100644
--- a/reactos/drivers/usb/nt4compat/usbdriver/umss.c
+++ b/reactos/drivers/usb/nt4compat/usbdriver/umss.c
@@ -214,6 +214,7 @@ umss_port_dispatch_routine(PDEVICE_OBJECT pdev_obj, PIRP irp)
                     EXIT_DISPATCH(STATUS_SUCCESS, irp);
                 }
             }
+            break;
         }
         case IRP_MJ_CREATE:
         case IRP_MJ_CLOSE: