[DLM] Fix uninitialised variable in receiving

The length of the second element of the kvec array was not initialised before
being added to the first one. This could cause invalid lengths to be passed to
kernel_recvmsg

Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/dlm/lowcomms-tcp.c b/fs/dlm/lowcomms-tcp.c
index 07e0a122c32f..9bfe7fb721e6 100644
--- a/fs/dlm/lowcomms-tcp.c
+++ b/fs/dlm/lowcomms-tcp.c
@@ -299,6 +299,7 @@ static int receive_from_sock(struct connection *con)
          */
         iov[0].iov_len = con->cb.base - cbuf_data(&con->cb);
         iov[0].iov_base = page_address(con->rx_page) + cbuf_data(&con->cb);
+        iov[1].iov_len = 0;
         nvec = 1;
 
         /*