From: Abner Chang <abner.chang@amd.com>

Update the Supported function to check if the given
controller handle is already started.

Signed-off-by: Abner Chang <abner.chang@amd.com>
Cc: Nickle Wang <nicklew@nvidia.com>
Cc: Igor Kulchytskyy <igork@ami.com>
---
 RedfishPkg/RedfishRestExDxe/RedfishRestExDriver.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/RedfishPkg/RedfishRestExDxe/RedfishRestExDriver.c b/RedfishPkg/RedfishRestExDxe/RedfishRestExDriver.c
index f897248fc44..1ac2ea6bcd3 100644
--- a/RedfishPkg/RedfishRestExDxe/RedfishRestExDriver.c
+++ b/RedfishPkg/RedfishRestExDxe/RedfishRestExDriver.c
@@ -422,6 +422,21 @@ RedfishRestExDriverBindingSupported (
   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL
   )
 {
+  EFI_STATUS  Status;
+  UINT32      *Id;
+
+  Status = gBS->OpenProtocol (
+                  ControllerHandle,
+                  &gEfiCallerIdGuid,
+                  (VOID **)&Id,
+                  This->DriverBindingHandle,
+                  ControllerHandle,
+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
+                  );
+  if (!EFI_ERROR (Status)) {
+    return EFI_ALREADY_STARTED;
+  }
+
   //
   // Test for the HttpServiceBinding Protocol.
   //
-- 
2.37.1.windows.1



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