X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=liblttng-ust%2Flttng-ring-buffer-client.h;h=b5eb692f7574db223ef2b06e3047277dd56274ce;hb=d78ca4883670ce4255ab9f99a735828b0e9e1ed1;hp=55209f45236db21b3700f8ddac0179430780eec8;hpb=3e2aaf78e6f8d57c7dbc42e39764862ba8c64bd7;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-ring-buffer-client.h b/liblttng-ust/lttng-ring-buffer-client.h
index 55209f45..b5eb692f 100644
--- a/liblttng-ust/lttng-ring-buffer-client.h
+++ b/liblttng-ust/lttng-ring-buffer-client.h
@@ -583,6 +583,8 @@ static int client_sequence_number(struct lttng_ust_lib_ring_buffer *buf,
 	struct packet_header *header;
 
 	header = client_packet_header(buf, handle);
+	if (!header)
+		return -1;
 	*seq = header->ctx.packet_seq_num;
 	return 0;
 }