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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-02-04 15:56:05 +0400
committerBjorn Helgaas <bhelgaas@google.com>2013-02-11 17:40:27 -0700
commit82fee4d67ab86d6fe5eb0f9a9e988ca9d654d765 (patch)
treed72305b7abc833c3d33c29402d7548e7acbe03c6 /drivers/pci
parentcc7ba39bab126339d6d525ada07dea5633d71521 (diff)
PCI/PM: Clear state_saved during suspend
This patch clears pci_dev->state_saved at the beginning of suspending. PCI config state may be saved long before that. Some drivers call pci_save_state() from the ->probe() callback to get snapshot of sane configuration space to use in the ->slot_reset() callback. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> # add comment Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci-driver.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index dc5bdce63f12..f9aa311b9f34 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -628,6 +628,7 @@ static int pci_pm_suspend(struct device *dev)
goto Fixup;
}
+ pci_dev->state_saved = false;
if (pm->suspend) {
pci_power_t prev = pci_dev->current_state;
int error;
@@ -774,6 +775,7 @@ static int pci_pm_freeze(struct device *dev)
return 0;
}
+ pci_dev->state_saved = false;
if (pm->freeze) {
int error;
@@ -862,6 +864,7 @@ static int pci_pm_poweroff(struct device *dev)
goto Fixup;
}
+ pci_dev->state_saved = false;
if (pm->poweroff) {
int error;
@@ -987,6 +990,7 @@ static int pci_pm_runtime_suspend(struct device *dev)
if (!pm || !pm->runtime_suspend)
return -ENOSYS;
+ pci_dev->state_saved = false;
pci_dev->no_d3cold = false;
error = pm->runtime_suspend(dev);
suspend_report_result(pm->runtime_suspend, error);