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authorLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-11-28 15:23:52 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-11-28 15:23:52 +1100
commitb5a20aa2657063cbf3b47fc700603180de4bb554 (patch)
tree9419fb851cda53a7f1fd67a3697bdf8550df19e4 /drivers/ata/libata-sff.c
parentcc09c0dc57de7f7d2ed89d480b5653e5f6a32f2c (diff)
parented313489badef16d700f5a3be50e8fd8f8294bc8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 4b4739486327..9033d164c4ec 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1227,10 +1227,19 @@ fsm_start:
/* ATA PIO protocol */
if (unlikely((status & ATA_DRQ) == 0)) {
/* handle BSY=0, DRQ=0 as error */
- if (likely(status & (ATA_ERR | ATA_DF)))
+ if (likely(status & (ATA_ERR | ATA_DF))) {
/* device stops HSM for abort/error */
qc->err_mask |= AC_ERR_DEV;
- else {
+
+ /* If diagnostic failed and this is
+ * IDENTIFY, it's likely a phantom
+ * device. Mark hint.
+ */
+ if (qc->dev->horkage &
+ ATA_HORKAGE_DIAGNOSTIC)
+ qc->err_mask |=
+ AC_ERR_NODEV_HINT;
+ } else {
/* HSM violation. Let EH handle this.
* Phantom devices also trigger this
* condition. Mark hint.