linux-kernel - Re: [PATCH] SATA / AHCI: Do not play with the link PM during suspend to RAM

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Message-ID: <4C6A7BFD.1070604@gmail.com>
Date:	Tue, 17 Aug 2010 14:09:33 +0200
From:	Tejun Heo <htejun@...il.com>
To:	Stephan Diestelhorst <stephan.diestelhorst@....com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-pm@...ts.osdl.org" <linux-pm@...ts.osdl.org>,
	Stephan Diestelhorst <stephan.diestelhorst@...il.com>
Subject: Re: [PATCH] SATA / AHCI: Do not play with the link PM during suspend
 to RAM

Hello,

On 08/17/2010 02:10 PM, Stephan Diestelhorst wrote:
> If you want me to test anything... let me know. Since I do not know
> much about the ATA code, I do not know what to change where. (A simple
> grep for sd_suspend in drivers/ata didn't turn up anything.)

Oh, sure, the following should be enough.  Thanks.

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 8802e48..892ccc7 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2456,6 +2456,8 @@ static int sd_suspend(struct device *dev, pm_message_t mesg)
 	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
 	int ret = 0;

+	return 0;
+
 	if (!sdkp)
 		return 0;	/* this can happen */

-- 
tejun
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