Some SATA controllers (sata_sil) use 0xff to indicate port not ready
status, not port empty. As libata interprets 0xff as port empty, this
causes unnecessary reset failure and retry. Don't consider 0xff as
port empty if SStatus is available and indicates that port is online.
Signed-off-by: tejun Heo <[EMAIL PROTECTED]>
Cc: Paul Mundt <[EMAIL PROTECTED]>
Cc: Indan Zupancic <[EMAIL PROTECTED]>
---
This one is for 2.6.22. Thanks.
libata-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index a6de57e..5788a9d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3022,7 +3022,7 @@ int ata_wait_ready(struct ata_port *ap,
if (!(status & ATA_BUSY))
return 0;
- if (status == 0xff)
+ if (!ata_port_online(ap) && status == 0xff)
return -ENODEV;
if (time_after(now, deadline))
return -EBUSY;
-
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