This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/pci.h        | 6 +++---
 hw/vfio/igd.c        | 3 +--
 hw/vfio/pci-quirks.c | 8 ++++----
 hw/vfio/pci.c        | 3 +--
 4 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 7914f019d5..f158681072 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -227,9 +227,9 @@ int vfio_pci_get_pci_hot_reset_info(VFIOPCIDevice *vdev,
 
 bool vfio_populate_vga(VFIOPCIDevice *vdev, Error **errp);
 
-int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
-                               struct vfio_region_info *info,
-                               Error **errp);
+bool vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
+                                struct vfio_region_info *info,
+                                Error **errp);
 
 void vfio_display_reset(VFIOPCIDevice *vdev);
 bool vfio_display_probe(VFIOPCIDevice *vdev, Error **errp);
diff --git a/hw/vfio/igd.c b/hw/vfio/igd.c
index ffe57c5954..402fc5ce1d 100644
--- a/hw/vfio/igd.c
+++ b/hw/vfio/igd.c
@@ -502,8 +502,7 @@ void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
     }
 
     /* Setup OpRegion access */
-    ret = vfio_pci_igd_opregion_init(vdev, opregion, &err);
-    if (ret) {
+    if (!vfio_pci_igd_opregion_init(vdev, opregion, &err)) {
         error_append_hint(&err, "IGD legacy mode disabled\n");
         error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
         goto out;
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 496fd1ee86..ca27917159 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1169,8 +1169,8 @@ static void vfio_probe_rtl8168_bar2_quirk(VFIOPCIDevice *vdev, int nr)
  * the table and to write the base address of that memory to the ASLS register
  * of the IGD device.
  */
-int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
-                               struct vfio_region_info *info, Error **errp)
+bool vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
+                                struct vfio_region_info *info, Error **errp)
 {
     int ret;
 
@@ -1181,7 +1181,7 @@ int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
         error_setg(errp, "failed to read IGD OpRegion");
         g_free(vdev->igd_opregion);
         vdev->igd_opregion = NULL;
-        return -EINVAL;
+        return false;
     }
 
     /*
@@ -1206,7 +1206,7 @@ int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev,
     pci_set_long(vdev->pdev.wmask + IGD_ASLS, ~0);
     pci_set_long(vdev->emulated_config_bits + IGD_ASLS, ~0);
 
-    return 0;
+    return true;
 }
 
 /*
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 8379d2284a..76a3931dba 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3161,8 +3161,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
             goto out_teardown;
         }
 
-        ret = vfio_pci_igd_opregion_init(vdev, opregion, errp);
-        if (ret) {
+        if (!vfio_pci_igd_opregion_init(vdev, opregion, errp)) {
             goto out_teardown;
         }
     }
-- 
2.34.1