Messages in this thread Patch in this message | | | Subject | [PATCH v2 4/7] PCI/PM: clear state_saved during suspend | From | Konstantin Khlebnikov <> | Date | Mon, 04 Feb 2013 15:56:05 +0400 |
| |
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This patch clears pci_dev->state_saved at the beginnig of suspending. PCI config state may be saved long before that. Some divers calls pci_save_state() from its ->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 Cc: linux-pci@vger.kernel.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/pci/pci-driver.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index dc5bdce..f9aa311 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);
| |