[PATCH] PCI: 'is_enabled' flag should be set/cleared when the device is actually enabled/disabled
I think 'is_enabled' flag in pci_dev structure should be set/cleared
when the device actually enabled/disabled. Especially about
pci_enable_device(), it can be failed. By this change, we will also
get the possibility of refering 'is_enabled' flag from the functions
called through pci_enable_device()/pci_disable_device().
Signed-off-by: Kenji Kaneshige <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
commit ceb43744cd48a20212e2179e0c7ff2f450a3c97e
tree f9554643bc9d70fe761840a603adce393c0e9f08
parent 8800cea62025a5209d110c5fa5990429239d6eee
author Kenji Kaneshige <[email protected]> 1112939611 +0900
committer Greg KH <[email protected]> 1115189113 -0700
Index: drivers/pci/pci.c
===================================================================
--- 2aa9e4732d7014dcda4c0e80d2e377f52e2262e9/drivers/pci/pci.c (mode:100644 sha1:bfbff83352688dc99776706033e1bb80b8282946)
+++ f9554643bc9d70fe761840a603adce393c0e9f08/drivers/pci/pci.c (mode:100644 sha1:fc8cc6c53778b6336e26ef23b1ac3e78eb16c7a2)
@@ -398,10 +398,10 @@
{
int err;
- dev->is_enabled = 1;
if ((err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1)))
return err;
pci_fixup_device(pci_fixup_enable, dev);
+ dev->is_enabled = 1;
return 0;
}
@@ -427,16 +427,15 @@
{
u16 pci_command;
- dev->is_enabled = 0;
- dev->is_busmaster = 0;
-
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
+ dev->is_busmaster = 0;
pcibios_disable_device(dev);
+ dev->is_enabled = 0;
}
/**
-
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