1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index bd147207f25d..b046ffa22101 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -864,6 +864,9 @@ static unsigned int ata_id_xfermask(const u16 *id)
 /**
  *      ata_port_queue_task - Queue port_task
  *      @ap: The ata_port to queue port_task for
+ *      @fn: workqueue function to be scheduled
+ *      @data: data value to pass to workqueue function
+ *      @delay: delay time for workqueue function
  *
  *      Schedule @fn(@data) for execution after @delay jiffies using
  *      port_task.  There is one port_task per port and it's the
@@ -2739,6 +2742,8 @@ static unsigned int ata_dev_set_xfermode(struct ata_port *ap,
  *      ata_dev_init_params - Issue INIT DEV PARAMS command
  *      @ap: Port associated with device @dev
  *      @dev: Device to which command will be sent
+ *      @heads: Number of heads (taskfile parameter)
+ *      @sectors: Number of sectors (taskfile parameter)
  *
  *      LOCKING:
  *      Kernel thread context (may sleep)
@@ -3638,6 +3643,8 @@ static void ata_pio_block(struct ata_port *ap)
 
                 ata_pio_sector(qc);
         }
+
+        ata_altstatus(ap); /* flush */
 }
 
 static void ata_pio_error(struct ata_port *ap)
@@ -3754,11 +3761,14 @@ static void atapi_packet_task(void *_data)
                 spin_lock_irqsave(&ap->host_set->lock, flags);
                 ap->flags &= ~ATA_FLAG_NOINTR;
                 ata_data_xfer(ap, qc->cdb, qc->dev->cdb_len, 1);
+                ata_altstatus(ap); /* flush */
+
                 if (qc->tf.protocol == ATA_PROT_ATAPI_DMA)
                         ap->ops->bmdma_start(qc);       /* initiate bmdma */
                 spin_unlock_irqrestore(&ap->host_set->lock, flags);
         } else {
                 ata_data_xfer(ap, qc->cdb, qc->dev->cdb_len, 1);
+                ata_altstatus(ap); /* flush */
 
                 /* PIO commands are handled by polling */
                 ap->hsm_task_state = HSM_ST;
@@ -4287,6 +4297,7 @@ static int ata_start_drive(struct ata_port *ap, struct ata_device *dev)
 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);
         }
@@ -4302,6 +4313,7 @@ int ata_device_resume(struct ata_port *ap, struct ata_device *dev)
  *      ata_device_suspend - prepare a device for suspend
  *      @ap: port the device is connected to
  *      @dev: the device to suspend
+ *      @state: target power management state
  *
  *      Flush the cache on the drive, if appropriate, then issue a
  *      standbynow command.