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authorJeff Garzik <jeff@garzik.org>2007-10-20 03:30:28 +0400
committerJeff Garzik <jeff@garzik.org>2007-10-24 03:53:16 +0400
commit246f93f5cc0d4116cadf33ad1c8ae7ac08e9b1c7 (patch)
tree05cfcb3b73c3de7b277295a9ca89db8cfb4bebd2 /drivers/isdn/act2000
parentd12341f9f2b7cc38c699c2af3a9f17eb39b64b17 (diff)
downloadlinux-246f93f5cc0d4116cadf33ad1c8ae7ac08e9b1c7.tar.xz
isdn/act2000: fix major bug. clean irq handler.
* invert sense of request_irq() test. otherwise we will always fail, when IRQ is available. * no need to use 'irq' function arg, its stored in a data struct already Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/isdn/act2000')
-rw-r--r--drivers/isdn/act2000/act2000_isa.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/isdn/act2000/act2000_isa.c b/drivers/isdn/act2000/act2000_isa.c
index 819ea85576a3..1bd8960ead33 100644
--- a/drivers/isdn/act2000/act2000_isa.c
+++ b/drivers/isdn/act2000/act2000_isa.c
@@ -61,7 +61,7 @@ act2000_isa_detect(unsigned short portbase)
}
static irqreturn_t
-act2000_isa_interrupt(int irq, void *dev_id)
+act2000_isa_interrupt(int dummy, void *dev_id)
{
act2000_card *card = dev_id;
u_char istatus;
@@ -80,7 +80,7 @@ act2000_isa_interrupt(int irq, void *dev_id)
printk(KERN_WARNING "act2000: errIRQ\n");
}
if (istatus)
- printk(KERN_DEBUG "act2000: ?IRQ %d %02x\n", irq, istatus);
+ printk(KERN_DEBUG "act2000: ?IRQ %d %02x\n", card->irq, istatus);
return IRQ_HANDLED;
}
@@ -131,6 +131,8 @@ act2000_isa_enable_irq(act2000_card * card)
int
act2000_isa_config_irq(act2000_card * card, short irq)
{
+ int old_irq;
+
if (card->flags & ACT2000_FLAGS_IVALID) {
free_irq(card->irq, card);
}
@@ -139,8 +141,10 @@ act2000_isa_config_irq(act2000_card * card, short irq)
if (!irq)
return 0;
- if (!request_irq(irq, &act2000_isa_interrupt, 0, card->regname, card)) {
- card->irq = irq;
+ old_irq = card->irq;
+ card->irq = irq;
+ if (request_irq(irq, &act2000_isa_interrupt, 0, card->regname, card)) {
+ card->irq = old_irq;
card->flags |= ACT2000_FLAGS_IVALID;
printk(KERN_WARNING
"act2000: Could not request irq %d\n",irq);