dcb: Plug a leaking DCB socket buffer

DCB socket buffer is allocated in dcb_init(), but never freed(). Free it
in dcb_fini().

Fixes: 67033d1c1c8a ("Add skeleton of a new tool, dcb")
Signed-off-by: Petr Machata <me@pmachata.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/dcb/dcb.c b/dcb/dcb.c
index f5c62790..0e3c8748 100644
--- a/dcb/dcb.c
+++ b/dcb/dcb.c
@@ -38,6 +38,7 @@ static void dcb_fini(struct dcb *dcb)
 {
 	delete_json_obj_plain();
 	mnl_socket_close(dcb->nl);
+	free(dcb->buf);
 }
 
 static struct dcb *dcb_alloc(void)