linux-kernel - Re: [possible BUG] PM suspend warning in 2.6.29-rc3-00227-gf1dd849

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Date:	Mon, 02 Feb 2009 10:49:15 -0800
From:	reinette chatre <reinette.chatre@...el.com>
To:	Ming Lei <tom.leiming@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux-kernel <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: [possible BUG] PM suspend warning in 2.6.29-rc3-00227-gf1dd849

Ming,

On Mon, 2009-02-02 at 06:14 -0800, Ming Lei wrote:
> After applying your patch, following is the dmesg output, so it is the
> iwl3945 driver that does not save pci state.

Could you please test with the patch below?

Thank you

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c
b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 95d0198..5b44d32 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -8143,6 +8143,7 @@ static int iwl3945_pci_suspend(struct pci_dev
*pdev, pm_message_t state)
 		priv->is_open = 1;
 	}
 
+	pci_save_state(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
 
 	return 0;
@@ -8153,6 +8154,7 @@ static int iwl3945_pci_resume(struct pci_dev
*pdev)
 	struct iwl3945_priv *priv = pci_get_drvdata(pdev);
 
 	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
 
 	if (priv->is_open)
 		iwl3945_mac_start(priv->hw);




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