X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-consumer.c;h=11318dbf1242b16837af564ac5e0acacb7f72cac;hb=f09bfe6f5eab40b40e9b1313528ba787fabc4f2a;hp=3bb54f03983178f035fdcb345f8e1d7670557847;hpb=b61e1dca934c1cda7632d154c243dcf56aabac60;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ust-consumer.c b/src/bin/lttng-sessiond/ust-consumer.c
index 3bb54f039..11318dbf1 100644
--- a/src/bin/lttng-sessiond/ust-consumer.c
+++ b/src/bin/lttng-sessiond/ust-consumer.c
@@ -496,7 +496,9 @@ int ust_consumer_metadata_request(struct consumer_socket *socket)
 
 			memset(&msg, 0, sizeof(msg));
 			msg.cmd_type = LTTNG_ERR_UND;
+			pthread_mutex_lock(socket->lock);
 			(void) consumer_send_msg(socket, &msg);
+			pthread_mutex_unlock(socket->lock);
 			/*
 			 * This is possible since the session might have been destroyed
 			 * during a consumer metadata request. So here, return gracefully