[PATCH] libata: set PIO-0 after successful EH reset
Set ata_device->pio_mode to XFER_PIO_0 after a successful reset. This
is to keep EH resets consistent with probe resets as updated by the
commit b6079ca409bf88c248992e96510dd6f610f7ed89. Note that, with
soon-to-follow hotplug update, EH resets will include probe resets.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 71b45ad..b88f492 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -1287,7 +1287,7 @@
unsigned int classes[ATA_MAX_DEVICES];
int tries = ATA_EH_RESET_TRIES;
ata_reset_fn_t reset;
- int rc;
+ int i, rc;
if (softreset && (!hardreset || (!sata_set_spd_needed(ap) &&
!(ehc->i.action & ATA_EH_HARDRESET))))
@@ -1319,6 +1319,12 @@
}
if (rc == 0) {
+ /* After the reset, the device state is PIO 0 and the
+ * controller state is undefined. Record the mode.
+ */
+ for (i = 0; i < ATA_MAX_DEVICES; i++)
+ ap->device[i].pio_mode = XFER_PIO_0;
+
if (postreset)
postreset(ap, classes);