[PATCH 4.19 34/47] cifs: Dont display RDMA transport on reconnect

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Long Li <longli@microsoft.com>

commit 14cc639c17ab0b6671526a7459087352507609e4 upstream.

On reconnect, the transport data structure is NULL and its information is not
available.

Signed-off-by: Long Li <longli@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/cifs/cifs_debug.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -210,6 +210,11 @@ static int cifs_debug_data_proc_show(str
 		if (!server->rdma)
 			goto skip_rdma;
 
+		if (!server->smbd_conn) {
+			seq_printf(m, "\nSMBDirect transport not available");
+			goto skip_rdma;
+		}
+
 		seq_printf(m, "\nSMBDirect (in hex) protocol version: %x "
 			"transport status: %x",
 			server->smbd_conn->protocol,