From: Karsten Keil <kkeil@suse.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: akpm@linux-foundation.org
Subject: Re: [PATCH 11/17] isdn/act2000: fix major bug. clean irq handler
Date: Mon, 22 Oct 2007 14:02:00 +0200 [thread overview]
Message-ID: <20071022120200.GA28552@pingi.kke.suse.de> (raw)
commit e295b1287f0f559f4795ae75acb793b480594a04
Author: Jeff Garzik <jeff@garzik.org>
Date: Fri Oct 19 19:30:28 2007 -0400
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
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/isdn/act2000/act2000_isa.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
e295b1287f0f559f4795ae75acb793b480594a04
diff --git a/drivers/isdn/act2000/act2000_isa.c b/drivers/isdn/act2000/act2000_isa.c
index 819ea85..1bd8960 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);
--
Karsten Keil
SuSE Labs
ISDN and VOIP development
SUSE LINUX Products GmbH, Maxfeldstr.5 90409 Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg)
next reply other threads:[~2007-10-22 12:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 12:02 Karsten Keil [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-10-21 7:52 [PATCH 0/17] various irq handler cleanups Jeff Garzik
2007-10-21 7:52 ` [PATCH 11/17] isdn/act2000: fix major bug. clean irq handler Jeff Garzik
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