-stable review patch. If anyone has any objections, please let us know.
------------------
From: Mark Lord <[email protected]>
Okay, just to sum things up.
This forces libata to wait for up to 2 seconds for BUSY|DRQ to clear
on resume before continuing.
[jgarzik adds...] During testing we never saw DRQ asserted, but
nonetheless (a) this works and (b) testing for DRQ won't hurt.
Signed-off-by: Mark Lord <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Signed-off-by: Chris Wright <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/scsi/libata-core.c | 1 +
1 file changed, 1 insertion(+)
--- linux-2.6.16.19.orig/drivers/scsi/libata-core.c
+++ linux-2.6.16.19/drivers/scsi/libata-core.c
@@ -4293,6 +4293,7 @@ static int ata_start_drive(struct ata_po
int ata_device_resume(struct ata_port *ap, struct ata_device *dev)
{
if (ap->flags & ATA_FLAG_SUSPENDED) {
+ ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 200000);
ap->flags &= ~ATA_FLAG_SUSPENDED;
ata_set_mode(ap);
}
--
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