diff --git a/[refs] b/[refs]
index f32b0bf6f5e9..a26f8c9600b7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: da2660d2c40496b1699c4de652f6d0cfd13937c0
+refs/heads/master: a1510210c45c9af5784d64596c7025997e1add7d
diff --git a/trunk/drivers/ide/pci/sl82c105.c b/trunk/drivers/ide/pci/sl82c105.c
index 6466db5f0170..8a5c7b286b2b 100644
--- a/trunk/drivers/ide/pci/sl82c105.c
+++ b/trunk/drivers/ide/pci/sl82c105.c
@@ -465,6 +465,9 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
 			hwif->autodma = 1;
 		hwif->drives[0].autodma = hwif->autodma;
 		hwif->drives[1].autodma = hwif->autodma;
+
+		if (hwif->mate)
+			hwif->serialized = hwif->mate->serialized = 1;
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 	}
 	hwif->OUTB(dma_state, hwif->dma_base + 2);