commit c7bec5aba52392aa8d675b8722735caf4a8b7265
author Jeff Garzik <jeff@garzik.org> Fri Oct 06 15:00:58 2006 -0400
committer Jeff Garzik <jeff@garzik.org> Fri Oct 06 15:00:58 2006 -0400
tree 8087cfd2866e63fba25e18ba1fa0f374c27be4f0
parent c31f28e778ab299a5035ea2bda64f245b8915d7c

Various drivers' irq handlers: kill dead code, needless casts

- Eliminate casts to/from void*

- Eliminate checks for conditions that never occur.  These typically
  fall into two classes:

	1) Checking for 'dev_id == NULL', then it is never called with
	NULL as an argument.

	2) Checking for invalid irq number, when the only caller (the
	system) guarantees the irq handler is called with the proper
	'irq' number argument.

Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/block/DAC960.c

diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 3e8ab84..742d074 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -5254,7 +5254,7 @@
 static irqreturn_t DAC960_GEM_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   DAC960_V2_StatusMailbox_T *NextStatusMailbox;
   unsigned long flags;
@@ -5295,7 +5295,7 @@
 static irqreturn_t DAC960_BA_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   DAC960_V2_StatusMailbox_T *NextStatusMailbox;
   unsigned long flags;
@@ -5337,7 +5337,7 @@
 static irqreturn_t DAC960_LP_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   DAC960_V2_StatusMailbox_T *NextStatusMailbox;
   unsigned long flags;
@@ -5379,7 +5379,7 @@
 static irqreturn_t DAC960_LA_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   DAC960_V1_StatusMailbox_T *NextStatusMailbox;
   unsigned long flags;
@@ -5417,7 +5417,7 @@
 static irqreturn_t DAC960_PG_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   DAC960_V1_StatusMailbox_T *NextStatusMailbox;
   unsigned long flags;
@@ -5455,7 +5455,7 @@
 static irqreturn_t DAC960_PD_InterruptHandler(int IRQ_Channel,
 				       void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   unsigned long flags;
 
@@ -5493,7 +5493,7 @@
 static irqreturn_t DAC960_P_InterruptHandler(int IRQ_Channel,
 				      void *DeviceIdentifier)
 {
-  DAC960_Controller_T *Controller = (DAC960_Controller_T *) DeviceIdentifier;
+  DAC960_Controller_T *Controller = DeviceIdentifier;
   void __iomem *ControllerBaseAddress = Controller->BaseAddress;
   unsigned long flags;