linux-kernel - Re: 2.6.18-mm2

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Message-ID: <20060929235054.GB2020@slug>
Date:	Fri, 29 Sep 2006 23:50:54 +0000
From:	Frederik Deweerdt <deweerdt@...e.fr>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Matthew Wilcox <matthew@....cx>,
	"J.A. Magall??n" <jamagallon@....com>,
	Andrew Morton <akpm@...l.org>,
	"Linux-Kernel," <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org
Subject: Re: 2.6.18-mm2

On Fri, Sep 29, 2006 at 06:15:42PM +0100, Alan Cox wrote:
> Ar Gwe, 2006-09-29 am 08:39 -0600, ysgrifennodd Matthew Wilcox:
> > On Fri, Sep 29, 2006 at 03:57:38PM +0200, J.A. Magall??n wrote:
> > > aic7xxx oopses on boot:
> > > 
> > > PCI: Setting latency timer of device 0000:00:0e.0 to 64
> > > IRQ handler type mismatch for IRQ 0
> > 
> > Of course, this isn't a scsi problem, it's a peecee hardware problem.
> > Or maybe a PCI subsystem problem.  But it's clearly not aic7xxx's fault.
> 
> AIC7xxx finding it has no IRQ configured is valid (annoying, stupid and
> valid) so the driver should check before requesting "no IRQ"
> 
Alan,

Does this patch makes sense in that case? If yes, I'll put up a patch
for the remaining cases in the drivers/scsi/aic7xxx/ directory.
Also, aic7xxx's coding style would put parenthesis around the returned
value, should I follow it?

Regards,
Frederik

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
index ea5687d..38f5ca7 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
@@ -185,6 +185,9 @@ ahc_linux_pci_dev_probe(struct pci_dev *
 	int		 error;
 	struct device	*dev = &pdev->dev;
 
+	if (!pdev->irq)
+		return -ENODEV;
+
 	pci = pdev;
 	entry = ahc_find_pci_device(pci);
 	if (entry == NULL)
-
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