s390x/css: Make CCWDeviceClass::realize return bool

Since the realize() handler of CCWDeviceClass 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 s390_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: <20240522170107.289532-3-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/hw/s390x/ccw-device.c b/hw/s390x/ccw-device.c
index fb8c1ac..a7d682e 100644
--- a/hw/s390x/ccw-device.c
+++ b/hw/s390x/ccw-device.c
@@ -31,9 +31,10 @@ static void ccw_device_refill_ids(CcwDevice *dev)
     dev->subch_id.valid = true;
 }
 
-static void ccw_device_realize(CcwDevice *dev, Error **errp)
+static bool ccw_device_realize(CcwDevice *dev, Error **errp)
 {
     ccw_device_refill_ids(dev);
+    return true;
 }
 
 static Property ccw_device_properties[] = {
diff --git a/hw/s390x/ccw-device.h b/hw/s390x/ccw-device.h
index 6dff952..5feeb0e 100644
--- a/hw/s390x/ccw-device.h
+++ b/hw/s390x/ccw-device.h
@@ -36,7 +36,7 @@ extern const VMStateDescription vmstate_ccw_dev;
 struct CCWDeviceClass {
     DeviceClass parent_class;
     void (*unplug)(HotplugHandler *, DeviceState *, Error **);
-    void (*realize)(CcwDevice *, Error **);
+    bool (*realize)(CcwDevice *, Error **);
     void (*refill_ids)(CcwDevice *);
 };
 
diff --git a/hw/s390x/s390-ccw.c b/hw/s390x/s390-ccw.c
index a06e91d..4b8ede7 100644
--- a/hw/s390x/s390-ccw.c
+++ b/hw/s390x/s390-ccw.c
@@ -137,8 +137,7 @@ static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
         goto out_err;
     }
 
-    ck->realize(ccw_dev, &err);
-    if (err) {
+    if (!ck->realize(ccw_dev, &err)) {
         goto out_err;
     }