Merge remote-tracking branch 'remotes/kraxel/tags/usb-20180618-pull-request' into staging

usb: revert ccid / qom patches.

# gpg: Signature made Mon 18 Jun 2018 10:21:11 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20180618-pull-request:
  Revert "bus: do not unref the added child bus on realize"
  Revert "usb: release the created buses"
  Revert "usb-ccid: fix bus leak"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

4 files changed, 1 insertions, 19 deletions

diff --git a/hw/core/bus.c b/hw/core/bus.c
index ad0c9df..4651f24 100644
--- a/hw/core/bus.c
+++ b/hw/core/bus.c
@@ -102,6 +102,7 @@ static void qbus_realize(BusState *bus, DeviceState *parent, const char *name)
         QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling);
         bus->parent->num_child_bus++;
         object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL);
+        object_unref(OBJECT(bus));
     } else if (bus != sysbus_get_default()) {
         /* TODO: once all bus devices are qdevified,
            only reset handler for main_system_bus should be registered here. */
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index fa546fb..13d0bef 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -1147,7 +1147,6 @@ static void ccid_unrealize(USBDevice *dev, Error **errp)
     USBCCIDState *s = USB_CCID_DEV(dev);
 
     ccid_bulk_in_clear(s);
-    object_unref(OBJECT(&s->bus));
 }
 
 static void ccid_flush_pending_answers(USBCCIDState *s)
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
index 47b992f..c99398b 100644
--- a/hw/usb/dev-storage.c
+++ b/hw/usb/dev-storage.c
@@ -588,13 +588,6 @@ static const struct SCSIBusInfo usb_msd_scsi_info_bot = {
     .load_request = usb_msd_load_request,
 };
 
-static void usb_msd_unrealize_storage(USBDevice *dev, Error **errp)
-{
-    MSDState *s = USB_STORAGE_DEV(dev);
-
-    object_unref(OBJECT(&s->bus));
-}
-
 static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
 {
     MSDState *s = USB_STORAGE_DEV(dev);
@@ -642,13 +635,6 @@ static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
     s->scsi_dev = scsi_dev;
 }
 
-static void usb_msd_bot_unrealize(USBDevice *dev, Error **errp)
-{
-    MSDState *s = USB_STORAGE_DEV(dev);
-
-    object_unref(OBJECT(&s->bus));
-}
-
 static void usb_msd_bot_realize(USBDevice *dev, Error **errp)
 {
     MSDState *s = USB_STORAGE_DEV(dev);
@@ -712,7 +698,6 @@ static void usb_msd_class_storage_initfn(ObjectClass *klass, void *data)
     USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
 
     uc->realize = usb_msd_storage_realize;
-    uc->unrealize = usb_msd_unrealize_storage;
     dc->props = msd_properties;
 }
 
@@ -775,7 +760,6 @@ static void usb_msd_class_bot_initfn(ObjectClass *klass, void *data)
     USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
 
     uc->realize = usb_msd_bot_realize;
-    uc->unrealize = usb_msd_bot_unrealize;
     uc->attached_settable = true;
 }
 
diff --git a/hw/usb/dev-uas.c b/hw/usb/dev-uas.c
index aaf5a88..be566ca 100644
--- a/hw/usb/dev-uas.c
+++ b/hw/usb/dev-uas.c
@@ -896,8 +896,6 @@ static void usb_uas_unrealize(USBDevice *dev, Error **errp)
     UASDevice *uas = USB_UAS(dev);
 
     qemu_bh_delete(uas->status_bh);
-
-    object_unref(OBJECT(&uas->bus));
 }
 
 static void usb_uas_realize(USBDevice *dev, Error **errp)