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-rw-r--r--chardev/char-ringbuf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/chardev/char-ringbuf.c b/chardev/char-ringbuf.c
index 301a5d8634..d40d21d3cf 100644
--- a/chardev/char-ringbuf.c
+++ b/chardev/char-ringbuf.c
@@ -42,8 +42,8 @@ struct RingBufChardev {
 };
 typedef struct RingBufChardev RingBufChardev;
 
-#define RINGBUF_CHARDEV(obj)                                    \
-    OBJECT_CHECK(RingBufChardev, (obj), TYPE_CHARDEV_RINGBUF)
+DECLARE_INSTANCE_CHECKER(RingBufChardev, RINGBUF_CHARDEV,
+                         TYPE_CHARDEV_RINGBUF)
 
 static size_t ringbuf_count(const Chardev *chr)
 {