From: Kristen Accardi <kristen.c.accardi@intel.com>
Date: Fri, 28 Apr 2006 18:37:38 +0000 (-0700)
Subject: [PATCH] PCI: don't enable device if already enabled
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a1e022b3aeacf633a6c8e8f0eb04d9c9e44b4fcd;p=linux-beck.git

[PATCH] PCI: don't enable device if already enabled

If a device is already enabled, don't bother reenabling it.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Acked-By: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index fde41cc14734..aa480370ef10 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -517,7 +517,12 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
 int
 pci_enable_device(struct pci_dev *dev)
 {
-	int err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
+	int err;
+
+	if (dev->is_enabled)
+		return 0;
+
+	err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
 	if (err)
 		return err;
 	pci_fixup_device(pci_fixup_enable, dev);