Merge "better document ifc_{add,del}_address return code" am: 32e7325c44 am: 19177b66cb
am: 00da032d07

Change-Id: I1b80e5b76409b926099ae5c88c84f64627a2897c
diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index a098d59..6af49bb 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -362,10 +362,12 @@
     return err->error;
 }
 
+// Returns zero on success and negative errno on failure.
 int ifc_add_address(const char *name, const char *address, int prefixlen) {
     return ifc_act_on_address(RTM_NEWADDR, name, address, prefixlen);
 }
 
+// Returns zero on success and negative errno on failure.
 int ifc_del_address(const char *name, const char * address, int prefixlen) {
     return ifc_act_on_address(RTM_DELADDR, name, address, prefixlen);
 }