diff --git a/backends/testdev.c b/backends/testdev.c
index 43787f6..26d5c73 100644
--- a/backends/testdev.c
+++ b/backends/testdev.c
@@ -108,7 +108,10 @@
     g_free(testdev);
 }
 
-CharDriverState *chr_testdev_init(void)
+static CharDriverState *chr_testdev_init(const char *id,
+                                         ChardevBackend *backend,
+                                         ChardevReturn *ret,
+                                         Error **errp)
 {
     TestdevCharState *testdev;
     CharDriverState *chr;
@@ -126,7 +129,7 @@
 static void register_types(void)
 {
     register_char_driver("testdev", CHARDEV_BACKEND_KIND_TESTDEV, NULL,
-                         NULL);
+                         chr_testdev_init);
 }
 
 type_init(register_types);
diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 77415ec..5c28c16 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -356,9 +356,6 @@
 
 CharDriverState *qemu_char_get_next_serial(void);
 
-/* testdev.c */
-CharDriverState *chr_testdev_init(void);
-
 /* console.c */
 typedef CharDriverState *(VcHandler)(ChardevVC *vc);
 
diff --git a/qemu-char.c b/qemu-char.c
index f2e3a35..56bc7ed 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -4318,7 +4318,7 @@
             abort();
             break;
         case CHARDEV_BACKEND_KIND_TESTDEV:
-            chr = chr_testdev_init();
+            abort();
             break;
         case CHARDEV_BACKEND_KIND_STDIO:
             chr = qemu_chr_open_stdio(backend->stdio);
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 8cfa5a2..b5322a2 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -1,6 +1,5 @@
 stub-obj-y += arch-query-cpu-def.o
 stub-obj-y += bdrv-commit-all.o
-stub-obj-y += chr-testdev.o
 stub-obj-y += clock-warp.o
 stub-obj-y += cpu-get-clock.o
 stub-obj-y += cpu-get-icount.o
diff --git a/stubs/chr-testdev.c b/stubs/chr-testdev.c
deleted file mode 100644
index 23112a2..0000000
--- a/stubs/chr-testdev.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include "qemu-common.h"
-#include "sysemu/char.h"
-
-CharDriverState *chr_testdev_init(void)
-{
-    return 0;
-}