fdmap: do not warn on ENOTCONN due to unavoidable race

A client may disconnect at any time, so shutdown may fail harmlessly
with ENOTCONN.

1 files changed, 3 insertions, 2 deletions

diff --git a/fdmap.c b/fdmap.c
index 8cb9954..823cf9f 100644
--- a/fdmap.c
+++ b/fdmap.c
@@ -230,8 +230,9 @@ static size_t expire_http(struct mog_fd *mfd, uint32_t msec)
                     tcp_timedout(&info, msec)) {
                         if (shutdown(mfd->fd, SHUT_RDWR) == 0)
                                 return 1;
-
-                        syslog(LOG_WARNING, "BUG? expire_http,shutdown: %m");
+                        if (errno != ENOTCONN)
+                                syslog(LOG_WARNING,
+                                       "BUG? expire_http,shutdown: %m");
                 }
         } else {
                 assert(errno != EINVAL && "BUG: getsockopt: EINVAL");