diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 679357fc1241e3462cf44b015e852a1e515ab30e..e494503330df6dec834d09845c128338f85d7b5d 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1116,7 +1116,7 @@ static int ahci_dma_add_status(IDEDMA *dma, int status)
     return 0;
 }
 
-static int ahci_async_cmd_done(IDEDMA *dma)
+static void ahci_async_cmd_done(IDEDMA *dma)
 {
     AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma);
 
@@ -1130,8 +1130,6 @@ static int ahci_async_cmd_done(IDEDMA *dma)
         ad->check_bh = qemu_bh_new(ahci_check_cmd_bh, ad);
         qemu_bh_schedule(ad->check_bh);
     }
-
-    return 0;
 }
 
 static void ahci_irq_set(void *opaque, int n, int level)
diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index 34064cf1a899f8c93c0f90d3d1c043701abbc91f..940dd4510c21613f487546e1bdb5c4e91b21a0cf 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -434,7 +434,7 @@ struct IDEDMAOps {
     DMAIntFunc *set_unit;
     DMAIntFunc *add_status;
     DMAVoidFunc *set_inactive;
-    DMAFunc *async_cmd_done;
+    DMAVoidFunc *async_cmd_done;
     DMARestartFunc *restart_cb;
     DMAVoidFunc *reset;
 };