linux-kernel - [PATCH] ricoh_mmc: Use suspend_late/resume

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Message-ID: <39393.98.210.152.237.1232305880.squirrel@overt.org>
Date:	Sun, 18 Jan 2009 14:11:20 -0500 (EST)
From:	philipl@...rt.org
To:	"linux kernel" <linux-kernel@...r.kernel.org>,
	sdhci-devel@...t.drzeus.cx, "Pierre Ossman" <drzeus@...eus.cx>
Cc:	rjw@...k.pl
Subject: [PATCH] ricoh_mmc: Use suspend_late/resume_early

If ricoh_mmc suspends before sdhci_pci, it will pull the card
out from under the controller, which could leave the system in
a very confused state.

Using suspend_late/resume_early ensures that sdhci_pci suspends first
and resumes second.

Signed-off-by: Philip Langdale <philipl@...rt.org>
---

 ricoh_mmc.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/ricoh_mmc.c b/drivers/mmc/host/ricoh_mmc.c
index be9e7b3..f627905 100644
--- a/drivers/mmc/host/ricoh_mmc.c
+++ b/drivers/mmc/host/ricoh_mmc.c
@@ -196,7 +196,7 @@ static void __devexit ricoh_mmc_remove(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 }

-static int ricoh_mmc_suspend(struct pci_dev *pdev, pm_message_t state)
+static int ricoh_mmc_suspend_late(struct pci_dev *pdev, pm_message_t state)
 {
 	struct pci_dev *fw_dev = NULL;

@@ -210,7 +210,7 @@ static int ricoh_mmc_suspend(struct pci_dev *pdev, pm_message_t state)
 	return 0;
 }

-static int ricoh_mmc_resume(struct pci_dev *pdev)
+static int ricoh_mmc_resume_early(struct pci_dev *pdev)
 {
 	struct pci_dev *fw_dev = NULL;

@@ -229,8 +229,8 @@ static struct pci_driver ricoh_mmc_driver = {
 	.id_table =	pci_ids,
 	.probe = 	ricoh_mmc_probe,
 	.remove =	__devexit_p(ricoh_mmc_remove),
-	.suspend =	ricoh_mmc_suspend,
-	.resume =	ricoh_mmc_resume,
+	.suspend_late =	ricoh_mmc_suspend_late,
+	.resume_early =	ricoh_mmc_resume_early,
 };

 /*****************************************************************************\

Based on comments from Rafael, I'm resending this patch using suspend_late and
resume_early instead.

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