[libvirt] [PATCH] daemon: plug a memory leak

[Eric Blake]

* daemon/libvirtd.c (qemudStartWorker, qemudStartEventLoop): Avoid
leaking pthread_attr resources.
---
 daemon/libvirtd.c |   36 ++++++++++++++++++++++++++----------
 1 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
index 2914f2f..14777dd 100644
--- a/daemon/libvirtd.c
+++ b/daemon/libvirtd.c
@@ -1600,15 +1600,20 @@ static void *qemudWorker(void *data)
     }
 }

-static int qemudStartWorker(struct qemud_server *server,
-                            struct qemud_worker *worker) {
+static int
+qemudStartWorker(struct qemud_server *server,
+                 struct qemud_worker *worker)
+{
     pthread_attr_t attr;
-    pthread_attr_init(&attr);
+    int ret = -1;
+
+    if (pthread_attr_init(&attr) != 0)
+        return -1;
     /* We want to join workers, so don't detach them */
     /*pthread_attr_setdetachstate(&attr, 1);*/

     if (worker->hasThread)
-        return -1;
+        goto cleanup;

     worker->server = server;
     worker->hasThread = 1;
@@ -1621,10 +1626,13 @@ static int qemudStartWorker(struct qemud_server *server,
                        worker) != 0) {
         worker->hasThread = 0;
         worker->server = NULL;
-        return -1;
+        goto cleanup;
     }

-    return 0;
+    ret = 0;
+cleanup:
+    pthread_attr_destroy(&attr);
+    return ret;
 }


@@ -2414,9 +2422,14 @@ cleanup:
 }


-static int qemudStartEventLoop(struct qemud_server *server) {
+static int
+qemudStartEventLoop(struct qemud_server *server)
+{
     pthread_attr_t attr;
-    pthread_attr_init(&attr);
+    int ret = -1;
+
+    if (pthread_attr_init(&attr) != 0)
+        return -1;
     /* We want to join the eventloop, so don't detach it */
     /*pthread_attr_setdetachstate(&attr, 1);*/

@@ -2424,11 +2437,14 @@ static int qemudStartEventLoop(struct qemud_server *server) {
                        &attr,
                        qemudRunLoop,
                        server) != 0)
-        return -1;
+        goto cleanup;

     server->hasEventThread = 1;

-    return 0;
+    ret = 0;
+cleanup:
+    pthread_attr_destroy(&attr);
+    return ret;
 }


-- 
1.7.3.3