Refine some code to make code run safely.

[mirror_edk2.git] / OptionRomPkg / UndiRuntimeDxe / Init.c

diff --git a/OptionRomPkg/UndiRuntimeDxe/Init.c b/OptionRomPkg/UndiRuntimeDxe/Init.c
index 7406b6d290d4be6bf0f974ee89edb5c57b1f4592..77931681e7b79a841482785d24496b9a5845748c 100644 (file)
--- a/OptionRomPkg/UndiRuntimeDxe/Init.c
+++ b/OptionRomPkg/UndiRuntimeDxe/Init.c
@@ -882,7 +882,7 @@ AppendMac2DevPath (
 \r
   MacAddrNode.Header.Type       = MESSAGING_DEVICE_PATH;\r
   MacAddrNode.Header.SubType    = MSG_MAC_ADDR_DP;\r
-  MacAddrNode.Header.Length[0]  = sizeof (MacAddrNode);\r
+  MacAddrNode.Header.Length[0]  = (UINT8) sizeof (MacAddrNode);\r
   MacAddrNode.Header.Length[1]  = 0;\r
 \r
   //\r