linux-kernel - [PATCH 09/12] PCI: make no_pci_devices() use the pci_bus

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Message-Id: <1203036010-27988-9-git-send-email-gregkh@suse.de>
Date:	Thu, 14 Feb 2008 16:40:07 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-pci@...ey.karlin.mff.cuni.cz
Cc:	linux-kernel@...r.kernel.org, pcihpd-discuss@...ts.sourceforge.net,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 09/12] PCI: make no_pci_devices() use the pci_bus_type list

no_pci_devices() should use the driver core list of PCI devices, not our
"separate" one.

Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/pci/probe.c |   17 ++++++++++++++---
 1 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 4d23b9f..5fd662e 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -22,16 +22,27 @@ EXPORT_SYMBOL(pci_root_buses);
 
 LIST_HEAD(pci_devices);
 
+
+static int find_anything(struct device *dev, void *data)
+{
+	return 1;
+}
+
 /*
  * Some device drivers need know if pci is initiated.
  * Basically, we think pci is not initiated when there
- * is no device in list of pci_devices.
+ * is no device to be found on the pci_bus_type.
  */
 int no_pci_devices(void)
 {
-	return list_empty(&pci_devices);
-}
+	struct device *dev;
+	int no_devices;
 
+	dev = bus_find_device(&pci_bus_type, NULL, NULL, find_anything);
+	no_devices = (dev == NULL);
+	put_device(dev);
+	return no_devices;
+}
 EXPORT_SYMBOL(no_pci_devices);
 
 #ifdef HAVE_PCI_LEGACY
-- 
1.5.4

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