X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=NetworkPkg%2FMtftp6Dxe%2FMtftp6Rrq.c;h=7fc613a6652b151fbe9ca9399bc3e3b3f6b8095e;hp=348a8f29c70fcb13e2f9c4f84292d8f721812f65;hb=75dce340624dba5e4a79b2e5b2dbe943bae0d0e9;hpb=e98e59c237e17f064a4ecffb39d45499f89720a1

diff --git a/NetworkPkg/Mtftp6Dxe/Mtftp6Rrq.c b/NetworkPkg/Mtftp6Dxe/Mtftp6Rrq.c
index 348a8f29c7..7fc613a665 100644
--- a/NetworkPkg/Mtftp6Dxe/Mtftp6Rrq.c
+++ b/NetworkPkg/Mtftp6Dxe/Mtftp6Rrq.c
@@ -547,13 +547,15 @@ Mtftp6RrqHandleOack (
         );
 
       Instance->McastPort  = ExtInfo.McastPort;
-      Instance->McastUdpIo = UdpIoCreateIo (
-                               Instance->Service->Controller,
-                               Instance->Service->Image,
-                               Mtftp6RrqConfigMcastUdpIo,
-                               UDP_IO_UDP6_VERSION,
-                               Instance
-                               );
+      if (Instance->McastUdpIo == NULL) {
+        Instance->McastUdpIo = UdpIoCreateIo (
+                                 Instance->Service->Controller,
+                                 Instance->Service->Image,
+                                 Mtftp6RrqConfigMcastUdpIo,
+                                 UDP_IO_UDP6_VERSION,
+                                 Instance
+                                 );
+      }
 
       if (Instance->McastUdpIo == NULL) {
         return EFI_DEVICE_ERROR;