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drivers/char: minor irq handler cleanups

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- remove always-false tests

- don't overload 'irq' argument, pass data properly via dev_id

- remove pointless casts from void*

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Jeff Garzik
2007-10-31 05:20:49 -04:00
committed by Jeff Garzik
parent e8f3954958
commit a6f97b293b
8 changed files with 42 additions and 52 deletions
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10
drivers/char/specialix.c
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@ -443,8 +443,7 @@ void missed_irq (unsigned long data)
spin_unlock_irqrestore(&bp->lock, flags);
if (irq) {
printk (KERN_INFO "Missed interrupt... Calling int from timer. \n");
sx_interrupt (((struct specialix_board *)data)->irq,
(void*)data);
sx_interrupt (-1, bp);
}
mod_timer(&missed_irq_timer, jiffies + sx_poll);
}
@ -862,23 +861,22 @@ static inline void sx_check_modem(struct specialix_board * bp)
/* The main interrupt processing routine */
static irqreturn_t sx_interrupt(int irq, void *dev_id)
static irqreturn_t sx_interrupt(int dummy, void *dev_id)
{
unsigned char status;
unsigned char ack;
struct specialix_board *bp;
struct specialix_board *bp = dev_id;
unsigned long loop = 0;
int saved_reg;
unsigned long flags;
func_enter();
bp = dev_id;
spin_lock_irqsave(&bp->lock, flags);
dprintk (SX_DEBUG_FLOW, "enter %s port %d room: %ld\n", __FUNCTION__, port_No(sx_get_port(bp, "INT")), SERIAL_XMIT_SIZE - sx_get_port(bp, "ITN")->xmit_cnt - 1);
if (!(bp->flags & SX_BOARD_ACTIVE)) {
dprintk (SX_DEBUG_IRQ, "sx: False interrupt. irq %d.\n", irq);
dprintk (SX_DEBUG_IRQ, "sx: False interrupt. irq %d.\n", bp->irq);
spin_unlock_irqrestore(&bp->lock, flags);
func_exit();
return IRQ_NONE;