1 files changed, 3 insertions, 3 deletions
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
index e1b602e7e2..401d32eb34 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/UhciSched.c
@@ -575,8 +575,8 @@ UhciExecuteTransfer (
 
   Finished = FALSE;
   Status   = EFI_SUCCESS;
-  Delay    = (TimeOut * STALL_1_MS / UHC_SYN_POLL) + 1;
-
+  Delay    = (TimeOut * UHC_1_MILLISECOND / UHC_SYNC_POLL_INTERVAL) + 1;
+  
   for (Index = 0; Index < Delay; Index++) {
     Finished = UhciCheckTdStatus (Uhc, Td, IsLow, QhResult);
 
@@ -587,7 +587,7 @@ UhciExecuteTransfer (
       break;
     }
 
-    gBS->Stall (UHC_SYN_POLL);
+    gBS->Stall (UHC_SYNC_POLL_INTERVAL);
   }
 
   if (!Finished) {