IRQ: Use the new typedef for interrupt handler function pointers

Use the new typedef for interrupt handler function pointers rather than
actually spelling out the full thing each time.  This was scripted with the
following small shell script:

#!/bin/sh
egrep -nHrl -e 'irqreturn_t[ 	]*[(][*]' $* |
while read i
do
    echo $i
    perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $?
done

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/include/asm-m68k/atari_stdma.h b/include/asm-m68k/atari_stdma.h
index a6986af..8e389b7 100644
--- a/include/asm-m68k/atari_stdma.h
+++ b/include/asm-m68k/atari_stdma.h
@@ -8,7 +8,7 @@
 
 /***************************** Prototypes *****************************/
 
-void stdma_lock(irqreturn_t (*handler)(int, void *), void *data);
+void stdma_lock(irq_handler_t handler, void *data);
 void stdma_release( void );
 int stdma_others_waiting( void );
 int stdma_islocked( void );
diff --git a/include/asm-m68k/ide.h b/include/asm-m68k/ide.h
index 896683a..f9ffb2c 100644
--- a/include/asm-m68k/ide.h
+++ b/include/asm-m68k/ide.h
@@ -123,7 +123,7 @@
 }
 
 static __inline__ void
-ide_get_lock(irqreturn_t (*handler)(int, void *), void *data)
+ide_get_lock(irq_handler_t handler, void *data)
 {
 	if (MACH_IS_ATARI) {
 		if (falconide_intr_lock == 0) {
diff --git a/include/asm-m68k/machdep.h b/include/asm-m68k/machdep.h
index 862afa4c..26d2b91 100644
--- a/include/asm-m68k/machdep.h
+++ b/include/asm-m68k/machdep.h
@@ -10,7 +10,7 @@
 struct rtc_pll_info;
 struct buffer_head;
 
-extern void (*mach_sched_init) (irqreturn_t (*handler)(int, void *));
+extern void (*mach_sched_init) (irq_handler_t handler);
 /* machine dependent irq functions */
 extern void (*mach_init_IRQ) (void);
 extern void (*mach_get_model) (char *model);