ide-cd: start DMA before sending the actual packet command

as it is done for all other IDE ATAPI devices.

There should be no functionality change resulting from this patch.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-cd.c

@@ -593,13 +593,13 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive)
 	if (cmd_len < ATAPI_MIN_CDB_BYTES)
 		cmd_len = ATAPI_MIN_CDB_BYTES;
 
-	/* send the command to the device */
-	hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);
-
 	/* start the DMA if need be */
 	if (drive->dma)
 		hwif->dma_ops->dma_start(drive);
 
+	/* send the command to the device */
+	hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);
+
 	return ide_started;
 }