Clear SError in ata_std_postreset(). This is to clear SError bits
which get set during reset.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/libata-core.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
033e89c7ccb4ba7ae815e6b3c2b65e5b0a8e0ce4
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 126adef..554cf8a 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2527,11 +2527,17 @@ int sata_std_hardreset(struct ata_port *
*/
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 (ata_scr_read(ap, SCR_ERROR, &serror) == 0)
+ ata_scr_write(ap, SCR_ERROR, serror);
+
/* re-enable interrupts */
if (ap->ioaddr.ctl_addr) /* FIXME: hack. create a hook instead */
ata_irq_on(ap);
--
1.2.4
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