UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[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>
This commit is contained in:
Kristen Accardi 2006-04-28 11:37:38 -07:00 committed by Greg Kroah-Hartman
parent 9f125d3048
commit a1e022b3ae
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/pci/pci.c
View File

@ -517,7 +517,12 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
int int
pci_enable_device(struct pci_dev *dev) 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) if (err)
return err; return err;
pci_fixup_device(pci_fixup_enable, dev); pci_fixup_device(pci_fixup_enable, dev);