From 10c9833183175d51947dbcfa8361420251ddaa6e Mon Sep 17 00:00:00 2001
From: Tejun Heo <htejun@gmail.com>
Date: Mon, 3 Apr 2006 01:58:06 +0900
Subject: [PATCH] --- yaml --- r: 29244 b: refs/heads/master c:
 c2a6585296009379e0f4eff39cdcb108b457ebf2 h: refs/heads/master v: v3

---
 [refs]                    | 2 +-
 trunk/drivers/scsi/ahci.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index f9aef03eb173..aefdaa421c69 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 95de719adc94392a95c3c4d0a2d6b8b1ea39d236
+refs/heads/master: c2a6585296009379e0f4eff39cdcb108b457ebf2
diff --git a/trunk/drivers/scsi/ahci.c b/trunk/drivers/scsi/ahci.c
index 0c5f0c844d21..ff48066d4c4f 100644
--- a/trunk/drivers/scsi/ahci.c
+++ b/trunk/drivers/scsi/ahci.c
@@ -549,6 +549,12 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
 
 	DPRINTK("ENTER\n");
 
+	if (!sata_dev_present(ap)) {
+		DPRINTK("PHY reports no device\n");
+		*class = ATA_DEV_NONE;
+		return 0;
+	}
+
 	/* prepare for SRST (AHCI-1.1 10.4.1) */
 	rc = ahci_stop_engine(ap);
 	if (rc) {