linux-kernel - [PATCH 07/11] parisc: superio: do not use PCI resources before pci_enable

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Message-Id: <1280850253-6128-1-git-send-email-segooon@gmail.com>
Date:	Tue,  3 Aug 2010 19:44:13 +0400
From:	Kulikov Vasiliy <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Kyle McMartin <kyle@...artin.ca>, Helge Deller <deller@....de>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>,
	Frans Pop <elendil@...net.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-parisc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 07/11] parisc: superio: do not use PCI resources before pci_enable_device()

IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.

The semantic match that finds this problem is as follows:

// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@

(
* x->irq
|
* x->resource
|
* request(x, ...)
)
 ...
*pci_enable_device(x)
// </smpl>

Signed-off-by: Kulikov Vasiliy <segooon@...il.com>
---
 drivers/parisc/superio.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index f7806d8..c8a36a2 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -169,8 +169,6 @@ superio_init(struct pci_dev *pcidev)
 	/* ...then properly fixup the USB to point at suckyio PIC */
 	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
 
-	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
-	       pci_name(pdev), pdev->irq);
 
 	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
 	sio->sp1_base &= ~1;
@@ -204,6 +202,9 @@ superio_init(struct pci_dev *pcidev)
 	ret = pci_enable_device(pdev);
 	BUG_ON(ret < 0);	/* not too much we can do about this... */
 
+	printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
+	       pci_name(pdev), pdev->irq);
+
 	/*
 	 * Next project is programming the onboard interrupt controllers.
 	 * PDC hasn't done this for us, since it's using polled I/O.
-- 
1.7.0.4

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