[Bluetooth] Convert interrupt handlers to use irqreturn_t

This patch changes the interrupt routines to make use of the
irqreturn_t return values.

drivers/bluetooth/bluecard_cs.c

@@ -499,7 +499,7 @@ static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
 }
 
 
-void bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 {
 	bluecard_info_t *info = dev_inst;
 	unsigned int iobase;
@@ -507,11 +507,11 @@ void bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 
 	if (!info) {
 		printk(KERN_WARNING "bluecard_cs: Call of irq %d for unknown device.\n", irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	if (!test_bit(CARD_READY, &(info->hw_state)))
-		return;
+		return IRQ_NONE;
 
 	iobase = info->link.io.BasePort1;
 
@@ -556,6 +556,8 @@ void bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 	outb(info->ctrl_reg, iobase + REG_CONTROL);
 
 	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
 }
 
 

drivers/bluetooth/bt3c_cs.c

@@ -355,7 +355,7 @@ static void bt3c_receive(bt3c_info_t *info)
 }
 
 
-void bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 {
 	bt3c_info_t *info = dev_inst;
 	unsigned int iobase;
@@ -363,7 +363,7 @@ void bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 
 	if (!info) {
 		printk(KERN_WARNING "bt3c_cs: Call of irq %d for unknown device.\n", irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	iobase = info->link.io.BasePort1;
@@ -396,6 +396,8 @@ void bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 	}
 
 	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
 }
 
 

drivers/bluetooth/btuart_cs.c

@@ -301,7 +301,7 @@ static void btuart_receive(btuart_info_t *info)
 }
 
 
-void btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 {
 	btuart_info_t *info = dev_inst;
 	unsigned int iobase;
@@ -310,7 +310,7 @@ void btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 
 	if (!info) {
 		printk(KERN_WARNING "btuart_cs: Call of irq %d for unknown device.\n", irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	iobase = info->link.io.BasePort1;
@@ -351,6 +351,8 @@ void btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 	}
 
 	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
 }
 
 

drivers/bluetooth/dtl1_cs.c

@@ -304,7 +304,7 @@ static void dtl1_receive(dtl1_info_t *info)
 }
 
 
-void dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 {
 	dtl1_info_t *info = dev_inst;
 	unsigned int iobase;
@@ -314,7 +314,7 @@ void dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 
 	if (!info) {
 		printk(KERN_WARNING "dtl1_cs: Call of irq %d for unknown device.\n", irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	iobase = info->link.io.BasePort1;
@@ -363,6 +363,8 @@ void dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
 	}
 
 	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
 }