Fix: relayd: missing session unlock on error path

[lttng-tools.git] / src / bin / lttng-relayd / live.cpp

diff --git a/src/bin/lttng-relayd/live.cpp b/src/bin/lttng-relayd/live.cpp
index 5925642f09837ce7a421c095a3992abc1fc82424..5aa899b282605a0c058f7f497f9b500ad7e0226b 100644 (file)
--- a/src/bin/lttng-relayd/live.cpp
+++ b/src/bin/lttng-relayd/live.cpp
@@ -655,7 +655,7 @@ end:
 }
 
 static
-int close_sock(void *data, int *in_fd)
+int close_sock(void *data, int *in_fd __attribute__((unused)))
 {
        struct lttcomm_sock *sock = (lttcomm_sock *) data;
 
@@ -766,7 +766,7 @@ error:
  * This thread manages the listening for new connections on the network
  */
 static
-void *thread_listener(void *data)
+void *thread_listener(void *data __attribute__((unused)))
 {
        int i, ret, pollfd, err = -1;
        uint32_t revents, nb_fd;
@@ -931,7 +931,7 @@ error_sock_control:
  * This thread manages the dispatching of the requests to worker threads
  */
 static
-void *thread_dispatcher(void *data)
+void *thread_dispatcher(void *data __attribute__((unused)))
 {
        int err = -1;
        ssize_t ret;
@@ -1266,7 +1266,12 @@ int viewer_get_new_streams(struct relay_connection *conn)
                        LTTNG_VIEWER_SEEK_BEGINNING, &nb_total, &nb_unsent,
                        &nb_created, &closed);
        if (ret < 0) {
-               goto error_unlock_session;
+               /*
+                * This is caused by an internal error; propagate the negative
+                * 'ret' to close the connection.
+                */
+               response.status = htobe32(LTTNG_VIEWER_NEW_STREAMS_ERR);
+               goto send_reply_unlock;
        }
        send_streams = 1;
        response.status = htobe32(LTTNG_VIEWER_NEW_STREAMS_OK);
@@ -1321,10 +1326,6 @@ end_put_session:
        }
 error:
        return ret;
-error_unlock_session:
-       pthread_mutex_unlock(&session->lock);
-       session_put(session);
-       return ret;
 }
 
 /*
@@ -2661,7 +2662,7 @@ void cleanup_connection_pollfd(struct lttng_poll_event *events, int pollfd)
  * This thread does the actual work
  */
 static
-void *thread_worker(void *data)
+void *thread_worker(void *data __attribute__((unused)))
 {
        int ret, err = -1;
        uint32_t nb_fd;