isisd: null check (Coverity 1424529)

Signed-off-by: F. Aragon <paco@voltanet.io>

diff --git a/isisd/isis_lsp.c b/isisd/isis_lsp.c
index 5418e318900b804b29ab4925e4290f9a95ead7bc..1258bec064f2e16f18ab3fbd3b6ce3f69d9ed6f4 100644 (file)
--- a/isisd/isis_lsp.c
+++ b/isisd/isis_lsp.c
@@ -1050,6 +1050,7 @@ static void lsp_build(struct isis_lsp *lsp, struct isis_area *area)
                                                uint8_t subtlv_len;
 
                                                if (IS_MPLS_TE(isisMplsTE)
+                                                   && circuit->interface
                                                    && HAS_LINK_PARAMS(
                                                               circuit->interface))
                                                        subtlv_len = add_te_subtlvs(