I reviewed all places that call
dbus_connection_send_with_reply_and_block(), and found several places
where dbus messages aren't properly unreffed.
---
 src/modules/bluetooth/backend-ofono.c |  6 ++++++
 src/modules/bluetooth/bluez4-util.c   | 12 ++++++++++--
 src/modules/bluetooth/bluez5-util.c   | 12 ++++++++++--
 src/modules/reserve.c                 |  6 ++++++
 4 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/src/modules/bluetooth/backend-ofono.c 
b/src/modules/bluetooth/backend-ofono.c
index 6e9a3664e..2c51497f3 100644
--- a/src/modules/bluetooth/backend-ofono.c
+++ b/src/modules/bluetooth/backend-ofono.c
@@ -168,9 +168,15 @@ static int 
hf_audio_agent_transport_acquire(pa_bluetooth_transport *t, bool opti
         dbus_error_init(&derr);
         pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, 
"org.ofono.HandsfreeAudioCard", "Connect"));
         r = 
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(card->backend->connection),
 m, -1, &derr);
+        dbus_message_unref(m);
+        m = NULL;
+
         if (!r)
             return -1;
 
+        dbus_message_unref(r);
+        r = NULL;
+
         if (card->connecting)
             return -EAGAIN;
     }
diff --git a/src/modules/bluetooth/bluez4-util.c 
b/src/modules/bluetooth/bluez4-util.c
index 82654508f..ca606193d 100644
--- a/src/modules/bluetooth/bluez4-util.c
+++ b/src/modules/bluetooth/bluez4-util.c
@@ -1116,6 +1116,8 @@ int pa_bluez4_transport_acquire(pa_bluez4_transport *t, 
bool optional, size_t *i
     pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, 
"org.bluez.MediaTransport", "Acquire"));
     pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, 
DBUS_TYPE_INVALID));
     r = 
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    dbus_message_unref(m);
+    m = NULL;
 
     if (!r) {
         dbus_error_free(&err);
@@ -1143,7 +1145,7 @@ fail:
 
 void pa_bluez4_transport_release(pa_bluez4_transport *t) {
     const char *accesstype = "rw";
-    DBusMessage *m;
+    DBusMessage *m, *r;
     DBusError err;
 
     pa_assert(t);
@@ -1154,7 +1156,13 @@ void pa_bluez4_transport_release(pa_bluez4_transport *t) 
{
 
     pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, 
"org.bluez.MediaTransport", "Release"));
     pa_assert_se(dbus_message_append_args(m, DBUS_TYPE_STRING, &accesstype, 
DBUS_TYPE_INVALID));
-    
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    r = 
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    dbus_message_unref(m);
+    m = NULL;
+    if (r) {
+        dbus_message_unref(r);
+        r = NULL;
+    }
 
     if (dbus_error_is_set(&err)) {
         pa_log("Failed to release transport %s: %s", t->path, err.message);
diff --git a/src/modules/bluetooth/bluez5-util.c 
b/src/modules/bluetooth/bluez5-util.c
index 8956fb13a..c92832329 100644
--- a/src/modules/bluetooth/bluez5-util.c
+++ b/src/modules/bluetooth/bluez5-util.c
@@ -363,6 +363,8 @@ static int 
bluez5_transport_acquire_cb(pa_bluetooth_transport *t, bool optional,
     dbus_error_init(&err);
 
     r = 
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    dbus_message_unref(m);
+    m = NULL;
     if (!r) {
         if (optional && pa_streq(err.name, "org.bluez.Error.NotAvailable"))
             pa_log_info("Failed optional acquire of unavailable transport %s", 
t->path);
@@ -393,7 +395,7 @@ finish:
 }
 
 static void bluez5_transport_release_cb(pa_bluetooth_transport *t) {
-    DBusMessage *m;
+    DBusMessage *m, *r;
     DBusError err;
 
     pa_assert(t);
@@ -408,7 +410,13 @@ static void 
bluez5_transport_release_cb(pa_bluetooth_transport *t) {
     }
 
     pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, 
BLUEZ_MEDIA_TRANSPORT_INTERFACE, "Release"));
-    
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    r = 
dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection),
 m, -1, &err);
+    dbus_message_unref(m);
+    m = NULL;
+    if (r) {
+        dbus_message_unref(r);
+        r = NULL;
+    }
 
     if (dbus_error_is_set(&err)) {
         pa_log_error("Failed to release transport %s: %s", t->path, 
err.message);
diff --git a/src/modules/reserve.c b/src/modules/reserve.c
index f78805ed7..b0038e662 100644
--- a/src/modules/reserve.c
+++ b/src/modules/reserve.c
@@ -474,6 +474,9 @@ int rd_acquire(
                goto fail;
        }
 
+        dbus_message_unref(m);
+        m = NULL;
+
        if (!dbus_message_get_args(
                    reply,
                    error,
@@ -483,6 +486,9 @@ int rd_acquire(
                goto fail;
        }
 
+        dbus_message_unref(reply);
+        reply = NULL;
+
        if (!good) {
                r = -EBUSY;
                goto fail;
-- 
2.11.0

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