[PATCH] link: Catch missing io_free() implementations

[Thomas Graf]

Signed-off-by: Thomas Graf <tgraf at suug.ch>
---
 include/netlink-private/netlink.h | 7 +++++++
 lib/route/link.c                  | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/include/netlink-private/netlink.h b/include/netlink-private/netlink.h
index ee2a8b1..e366d1e 100644
--- a/include/netlink-private/netlink.h
+++ b/include/netlink-private/netlink.h
@@ -102,6 +102,13 @@ struct trans_list {
 		assert(0);						\
 	} while (0)
 
+#define BUG_ON(condition)						\
+	do {								\
+		if (condition)						\
+			BUG();						\
+	} while (0)
+
+
 #define APPBUG(msg)							\
 	do {								\
 		fprintf(stderr, "APPLICATION BUG: %s:%d:%s: %s\n",	\
diff --git a/lib/route/link.c b/lib/route/link.c
index d609b17..3263096 100644
--- a/lib/route/link.c
+++ b/lib/route/link.c
@@ -194,6 +194,10 @@ static void release_link_info(struct rtnl_link *link)
 	if (io != NULL) {
 		if (io->io_free)
 			io->io_free(link);
+		else {
+			/* Catch missing io_free() implementations */
+			BUG_ON(link->l_info);
+		}
 		rtnl_link_info_ops_put(io);
 		link->l_info_ops = NULL;
 	}
-- 
1.8.3.1