s390x/css: Make S390CCWDeviceClass::realize return bool
Since the realize() handler of S390CCWDeviceClass takes an 'Error **'
argument, best practices suggest to return a bool. See the api/error.h
Rules section. While at it, modify the call in vfio_ccw_realize().
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240522170107.289532-5-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/hw/s390x/s390-ccw.c b/hw/s390x/s390-ccw.c
index b3d14c6..3c09750 100644
--- a/hw/s390x/s390-ccw.c
+++ b/hw/s390x/s390-ccw.c
@@ -108,7 +108,7 @@
return true;
}
-static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
+static bool s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
{
CcwDevice *ccw_dev = CCW_DEVICE(cdev);
CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev);
@@ -117,7 +117,7 @@
int ret;
if (!s390_ccw_get_dev_info(cdev, sysfsdev, errp)) {
- return;
+ return false;
}
sch = css_create_sch(ccw_dev->devno, errp);
@@ -142,7 +142,7 @@
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
parent->hotplugged, 1);
- return;
+ return true;
out_err:
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
@@ -150,6 +150,7 @@
g_free(sch);
out_mdevid_free:
g_free(cdev->mdevid);
+ return false;
}
static void s390_ccw_unrealize(S390CCWDevice *cdev)
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index 2600e62..9a8e052 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -582,8 +582,7 @@
/* Call the class init function for subchannel. */
if (cdc->realize) {
- cdc->realize(cdev, vcdev->vdev.sysfsdev, &err);
- if (err) {
+ if (!cdc->realize(cdev, vcdev->vdev.sysfsdev, &err)) {
goto out_err_propagate;
}
}
diff --git a/include/hw/s390x/s390-ccw.h b/include/hw/s390x/s390-ccw.h
index 2c807ee..2e0a709 100644
--- a/include/hw/s390x/s390-ccw.h
+++ b/include/hw/s390x/s390-ccw.h
@@ -31,7 +31,7 @@
struct S390CCWDeviceClass {
CCWDeviceClass parent_class;
- void (*realize)(S390CCWDevice *dev, char *sysfsdev, Error **errp);
+ bool (*realize)(S390CCWDevice *dev, char *sysfsdev, Error **errp);
void (*unrealize)(S390CCWDevice *dev);
IOInstEnding (*handle_request) (SubchDev *sch);
int (*handle_halt) (SubchDev *sch);