interface-ip: fix memory leak on error in interface_update_prefix_assignments()

Detected by coverity in CID 141267

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/interface-ip.c b/interface-ip.c
index 6726a69..27e9e41 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -994,8 +994,10 @@ static void interface_update_prefix_assignments(struct device_prefix *prefix, bo
 			}
 
 			entry = calloc(1, sizeof(*entry));
-			if (!entry)
+			if (!entry) {
+				free(c);
 				continue;
+			}
 
 			entry->node.key = c;
 			avl_insert(&assign_later, &entry->node);