1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 9560a8f4a86c..4cece930114c 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -836,9 +836,17 @@ static ide_startstop_t do_special (ide_drive_t *drive)
                 if (set_pio_mode_abuse(drive->hwif, req_pio)) {
                         if (hwif->set_pio_mode)
                                 hwif->set_pio_mode(drive, req_pio);
-                } else
+                } else {
+                        int keep_dma = drive->using_dma;
+
                         ide_set_pio(drive, req_pio);
 
+                        if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
+                                if (keep_dma)
+                                        hwif->ide_dma_on(drive);
+                        }
+                }
+
                 return ide_stopped;
         } else {
                 if (drive->media == ide_disk)