linux-kernel - [PATCH v1 3/3] scsi: allow scsi devices to use direct complete

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Message-Id: <1456359089-19807-3-git-send-email-dbasehore@chromium.org>
Date:	Wed, 24 Feb 2016 16:11:29 -0800
From:	Derek Basehore <dbasehore@...omium.org>
To:	linux-pm@...r.kernel.org
Cc:	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org,
	"James E . J . Bottomley" <JBottomley@...n.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	linux-scsi@...r.kernel.org, Derek Basehore <dbasehore@...omium.org>
Subject: [PATCH v1 3/3] scsi: allow scsi devices to use direct complete

This allows scsi devices to remain runtime suspended for system
suspend. Since runtime suspend is stricter than system suspend
callbacks, this is just returning a positive number for the prepare
callback.

Signed-off-by: Derek Basehore <dbasehore@...omium.org>
Reviewed-by: Eric Caruso <ejcaruso@...omium.org>
---
 drivers/scsi/scsi_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index b44c1bb..7af76ad 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -178,7 +178,7 @@ static int scsi_bus_prepare(struct device *dev)
 		/* Wait until async scanning is finished */
 		scsi_complete_async_scans();
 	}
-	return 0;
+	return 1;
 }
 
 static int scsi_bus_suspend(struct device *dev)
-- 
2.7.0.rc3.207.g0ac5344