Fix metadata event arg (null pointer exception)

[lttng-modules.git] / ltt-ring-buffer-metadata-client.h

diff --git a/ltt-ring-buffer-metadata-client.h b/ltt-ring-buffer-metadata-client.h
index bde712e6e6adbf6e513c843622977ea55de63f43..c457aea21361832cdb7c38de3483b559279922b5 100644 (file)
--- a/ltt-ring-buffer-metadata-client.h
+++ b/ltt-ring-buffer-metadata-client.h
@@ -86,7 +86,8 @@ static void client_buffer_begin(struct lib_ring_buffer *buf, u64 tsc,
                (struct metadata_packet_header *)
                        lib_ring_buffer_offset_address(&buf->backend,
                                subbuf_idx * chan->backend.subbuf_size);
-       struct ltt_session *session = channel_get_private(chan);
+       struct ltt_channel *ltt_chan = channel_get_private(chan);
+       struct ltt_session *session = ltt_chan->session;
 
        header->magic = TSDL_MAGIC_NUMBER;
        memcpy(header->uuid, session->uuid.b, sizeof(session->uuid));
@@ -152,12 +153,12 @@ static const struct lib_ring_buffer_config client_config = {
 
 static
 struct channel *_channel_create(const char *name,
-                               struct ltt_session *session, void *buf_addr,
+                               struct ltt_channel *ltt_chan, void *buf_addr,
                                size_t subbuf_size, size_t num_subbuf,
                                unsigned int switch_timer_interval,
                                unsigned int read_timer_interval)
 {
-       return channel_create(&client_config, name, session, buf_addr,
+       return channel_create(&client_config, name, ltt_chan, buf_addr,
                              subbuf_size, num_subbuf, switch_timer_interval,
                              read_timer_interval);
 }