Fix a leak-on-error case in 0.2.4 spotted by coverity

This one hits if the snprintf() fails when we're writing our IPv6
exit policy. It's new in 0.2.4.7-alpha. Part of bug 7816.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/or/router.c b/src/or/router.c
index c7380cb44..e892ce099 100644
--- a/src/or/router.c
+++ b/src/or/router.c
@@ -2190,6 +2190,7 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
                             "ipv6-policy %s\n", p6);
       if (result<0) {
         log_warn(LD_BUG,"Descriptor printf of policy ran out of room");
+        tor_free(p6);
         return -1;
       }
       written += result;