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-rw-r--r--hw/usb/dev-serial.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index 8f13f2fd31..1a58851d4b 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -113,7 +113,8 @@ struct USBSerialState {
typedef struct USBSerialState USBSerialState;
#define TYPE_USB_SERIAL "usb-serial-dev"
-#define USB_SERIAL_DEV(obj) OBJECT_CHECK(USBSerialState, (obj), TYPE_USB_SERIAL)
+DECLARE_INSTANCE_CHECKER(USBSerialState, USB_SERIAL_DEV,
+ TYPE_USB_SERIAL)
enum {
STR_MANUFACTURER = 1,