From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130518021656.674764124@goodmis.org> Date: Fri, 17 May 2013 22:17:30 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bjorn Helgaas Subject: [ 093/136 ] PCI/PM: Clear state_saved during suspend References: <20130518021557.139113314@goodmis.org> Content-Disposition: inline; filename=0093-PCI-PM-Clear-state_saved-during-suspend.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.4 stable review patch. If anyone has any objections, please let me know. ------------------ From: "Rafael J. Wysocki" [ Upstream commit 82fee4d67ab86d6fe5eb0f9a9e988ca9d654d765 ] 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 # add comment Signed-off-by: Bjorn Helgaas Signed-off-by: Steven Rostedt --- 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 729e038..97d0f03d 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -685,6 +685,7 @@ 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; @@ -831,6 +832,7 @@ static int pci_pm_freeze(struct device *dev) return 0; } + pci_dev->state_saved = false; if (pm->freeze) { int error; @@ -919,6 +921,7 @@ static int pci_pm_poweroff(struct device *dev) goto Fixup; } + pci_dev->state_saved = false; if (pm->poweroff) { int error; @@ -1037,6 +1040,7 @@ 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); -- 1.7.10.4