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From: Ralph Metzler <rjkm@metzlerbros.de>
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Date: Thu, 15 Sep 2005 12:29:47 +0200
To: Manu Abraham <manu@linuxtv.org>
Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>, Jiri Slaby <jirislaby@gmail.com>,
       linux-kernel@vger.kernel.org
Subject: Re: PCI driver
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Hi Manu,

Manu Abraham writes:
 > [  102.261264] mantis_pci_probe: Got a device
 > [  102.262852] mantis_pci_probe: We got an IRQ
 > [  102.264392] mantis_pci_probe: We finally enabled the device
 > [  102.266020] Mantis Rev 1, irq: 23, latency: 32
 > [  102.266118]          memory: 0xefeff000, mmio: f9218000
 > [  102.269162] Trying to free free IRQ23
 > [  110.297341] mantis_pci_remove: Removing -->Mantis irq: 23,         
 > latency: 32
 > [  110.297344]  memory: 0xefeff000, mmio: 0xf9218000
 > [  110.301326] Trying to free free IRQ23
 > [  110.303445] Trying to free nonexistent resource <efeff000-efefffff>


I think you should call pci_enable_device() before request_irq, etc. 
AFAIK, the pci_enable_device() can change resources like IRQ.
That's probably what causes these errors. Just print out the irq 
number before and after pci_enable_device() to check if that's the 
problem.


Ralph