Don't leak file descriptor on syncWithMaster().

Close #3804.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/replication.c b/src/replication.c
index df2e23f3a..bde37bc43 100644
--- a/src/replication.c
+++ b/src/replication.c
@@ -1568,7 +1568,7 @@ int slaveTryPartialResynchronization(int fd, int read_reply) {
  * establish a connection with the master. */
 void syncWithMaster(aeEventLoop *el, int fd, void *privdata, int mask) {
     char tmpfile[256], *err = NULL;
-    int dfd, maxtries = 5;
+    int dfd = -1, maxtries = 5;
     int sockerr = 0, psync_result;
     socklen_t errlen = sizeof(sockerr);
     UNUSED(el);
@@ -1832,6 +1832,7 @@ void syncWithMaster(aeEventLoop *el, int fd, void *privdata, int mask) {
 
 error:
     aeDeleteFileEvent(server.el,fd,AE_READABLE|AE_WRITABLE);
+    if (dfd != -1) close(dfd);
     close(fd);
     server.repl_transfer_s = -1;
     server.repl_state = REPL_STATE_CONNECT;