isisd: address Coverity warnings
this fixes a bunch of issues found by Coverity SCAN and flagged as
"high" impact -- although, they're all rather minute issues.
* isisd/isis_adjacency.c: one superfluous check, one possible NULL deref
* isisd/isis_circuit.c: two prefix memory leaks
* isisd/isis_csm.c: one missing break
* isisd/isis_lsp.c: one possible NULL deref
* isisd/isis_pfpacket.c: one error-case fd leak
* isisd/isis_route.c: one isis_route_info memory leak
* isisd/isis_routemap.c: one... fnord
* isisd/isis_tlv.c: one infinite loop
Reported-by: Coverity SCAN
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/isisd/isis_csm.c b/isisd/isis_csm.c
index 5d74a71..a58ba49 100644
--- a/isisd/isis_csm.c
+++ b/isisd/isis_csm.c
@@ -101,6 +101,7 @@
break;
case ISIS_DISABLE:
zlog_warn ("circuit already disabled");
+ break;
case IF_DOWN_FROM_Z:
zlog_warn ("circuit already disconnected");
break;