[PATCH] libata-eh-fw: clear SError in ata_std_postreset()
Clear SError in ata_std_postreset(). This is to clear SError bits
which get set during reset.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 9a97ebd..de2cd61 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2528,11 +2528,17 @@
*/
void ata_std_postreset(struct ata_port *ap, unsigned int *classes)
{
+ u32 serror;
+
DPRINTK("ENTER\n");
/* print link status */
sata_print_link_status(ap);
+ /* clear SError */
+ if (sata_scr_read(ap, SCR_ERROR, &serror) == 0)
+ sata_scr_write(ap, SCR_ERROR, serror);
+
/* re-enable interrupts */
if (ap->ioaddr.ctl_addr) /* FIXME: hack. create a hook instead */
ata_irq_on(ap);