dhcpcd: Set ctx.ifaces to NULL after freeing

Because they it might be used trying to find an interface to assign
our option routes to when freed if never used.

diff --git a/src/dhcpcd.c b/src/dhcpcd.c
index 1509adb07ea34621d9b4666979da620e24fba3e7..2b04bb3e65f23422fc0d2709a01885499116dc91 100644 (file)
--- a/src/dhcpcd.c
+++ b/src/dhcpcd.c
@@ -2133,6 +2133,7 @@ exit1:
                        if_free(ifp);
                }
                free(ctx.ifaces);
+               ctx.ifaces = NULL;
        }
        free_options(&ctx, ifo);
 #ifdef HAVE_OPEN_MEMSTREAM