--- a/src/libudev.c
+++ b/src/libudev.c
@@ -162,7 +162,7 @@ udev_device_get_driver(struct udev_devic
 		char driverlnk[32];
 		snprintf(driverlnp, sizeof(driverlnp), "%s/driver",
 			 udev_device->sysfspath);
-		if (readlink(driverlnp, driverlnk, sizeof(driver)))
+		if (readlink(driverlnp, driverlnk, sizeof(driverlnk)))
 		{
 			char *drivernm;
 			drivernm = strrchr(driverlnk, '/');
@@ -600,6 +600,18 @@ udev_enumerate_add_match_property(struct
 	    value);
 	return -1;
 }
+
+int
+udev_enumerate_add_nomatch_sysattr(struct udev_enumerate *udev_enumerate,
+    const char *sysattr, const char *value)
+{
+	(void)udev_enumerate;
+	(void)sysattr;
+	(void)value;
+	LOG("stub: udev_enumerate_add_nomatch_sysattr %s %s\n", sysattr,
+	    value);
+	return -1;
+}
 
 void
 udev_enumerate_unref(struct udev_enumerate *udev_enumerate)
--- a/src/libudev.h
+++ b/src/libudev.h
@@ -59,6 +59,8 @@ int udev_enumerate_add_match_sysname(
     struct udev_enumerate *udev_enumerate, char const *sysname);
 int udev_enumerate_add_match_property(struct udev_enumerate *udev_enumerate,
     char const *property, char const *value);
+int udev_enumerate_add_nomatch_sysattr(struct udev_enumerate *udev_enumerate,
+    const char *sysattr, const char *value);
 void udev_enumerate_unref(struct udev_enumerate *udev_enumerate);
 
 #define udev_list_entry_foreach(list_entry, first_entry)                      \
