X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-consumer.c;h=a2258f409ad1a9ef8b773446da01205800458f12;hb=1b0afea26b25d92ebdcb2a178bd1a60085ff78aa;hp=82fd0ea074e0519c2c6bac47c146295e6c861053;hpb=987af24193476d1cb2fbf9ddccfe5980da52f9c4;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ust-consumer.c b/src/bin/lttng-sessiond/ust-consumer.c
index 82fd0ea07..a2258f409 100644
--- a/src/bin/lttng-sessiond/ust-consumer.c
+++ b/src/bin/lttng-sessiond/ust-consumer.c
@@ -505,7 +505,9 @@ 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