Skip SRST if phy is offline. It has been in libata-dev#upstream for
quite some time but somehow didn't make into 2.6.17.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
Jeff, after review, please forward to -stable. Thanks.
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index b4f8fb1..1b01c4d 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -548,6 +548,12 @@ static int ahci_softreset(struct ata_por
DPRINTK("ENTER\n");
+ if (!sata_dev_present(ap)) {
+ *class = ATA_DEV_NONE;
+ DPRINTK("EXIT, link offline\n");
+ return 0;
+ }
+
/* prepare for SRST (AHCI-1.1 10.4.1) */
rc = ahci_stop_engine(ap);
if (rc) {
-
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