[Qemu-devel] [PATCH 06/17] vfio: Pass local error object pointer to error_append_hint()

[Greg Kurz]

Ensure that hints are added even if errp is &error_fatal or &error_abort.

Signed-off-by: Greg Kurz <gr...@kaod.org>
---
 hw/vfio/common.c |   14 ++++++++++----
 hw/vfio/pci.c    |   12 ++++++++----
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 3e03c495d868..05b1c39a426f 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1469,10 +1469,13 @@ VFIOGroup *vfio_get_group(int groupid, AddressSpace 
*as, Error **errp)
     }
 
     if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
-        error_setg(errp, "group %d is not viable", groupid);
-        error_append_hint(errp,
+        Error *err = NULL;
+
+        error_setg(&err, "group %d is not viable", groupid);
+        error_append_hint(&err,
                           "Please ensure all devices within the iommu_group "
                           "are bound to their vfio bus driver.\n");
+        error_propagate(errp, err);
         goto close_fd_exit;
     }
 
@@ -1531,11 +1534,14 @@ int vfio_get_device(VFIOGroup *group, const char *name,
 
     fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, name);
     if (fd < 0) {
-        error_setg_errno(errp, errno, "error getting device from group %d",
+        Error *err = NULL;
+
+        error_setg_errno(&err, errno, "error getting device from group %d",
                          group->groupid);
-        error_append_hint(errp,
+        error_append_hint(&err,
                       "Verify all devices in group %d are bound to vfio-<bus> "
                       "or pci-stub and not already in use\n", group->groupid);
+        error_propagate(errp, err);
         return fd;
     }
 
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index dc3479c374e3..b037dec2215b 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2527,10 +2527,13 @@ static void vfio_populate_device(VFIOPCIDevice *vdev, 
Error **errp)
     g_free(reg_info);
 
     if (vdev->features & VFIO_FEATURE_ENABLE_VGA) {
-        ret = vfio_populate_vga(vdev, errp);
+        Error *err = NULL;
+
+        ret = vfio_populate_vga(vdev, &err);
         if (ret) {
-            error_append_hint(errp, "device does not support "
+            error_append_hint(&err, "device does not support "
                               "requested feature x-vga\n");
+            error_propagate(errp, err);
             return;
         }
     }
@@ -2714,9 +2717,10 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
     if (!vdev->vbasedev.sysfsdev) {
         if (!(~vdev->host.domain || ~vdev->host.bus ||
               ~vdev->host.slot || ~vdev->host.function)) {
-            error_setg(errp, "No provided host device");
-            error_append_hint(errp, "Use -device vfio-pci,host=DDDD:BB:DD.F "
+            error_setg(&err, "No provided host device");
+            error_append_hint(&err, "Use -device vfio-pci,host=DDDD:BB:DD.F "
                               "or -device vfio-pci,sysfsdev=PATH_TO_DEVICE\n");
+            error_propagate(errp, err);
             return;
         }
         vdev->vbasedev.sysfsdev =