Commit 973eac638e4fd introduces an uninitialised value that may prevent
shared memory from being allocated. The compiler didn't give any warning
because the pointer to the value is sent to a function that don't do anything
with it. We simply pass NULL to that function.
---
 liblttng-ust/lttng-ust-comm.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 4bc350e2..a299ba84 100644
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -875,17 +875,14 @@ int handle_message(struct sock_info *sock_info,
        }
        case LTTNG_UST_STREAM:
        {
-               uint64_t memory_map_size;
-
                /* Receive shm_fd, wakeup_fd */
                ret = ustcomm_recv_stream_from_sessiond(sock,
-                       &memory_map_size,
+                       NULL,
                        &args.stream.shm_fd,
                        &args.stream.wakeup_fd);
                if (ret) {
                        goto error;
                }
-               lum->u.stream.len = memory_map_size;
 
                if (ops->cmd)
                        ret = ops->cmd(lum->handle, lum->cmd,
-- 
2.22.0

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