public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
* [PATCH] MdeModulePkg/Setup: Check ConfigAccess protocol in case it's destroyed
@ 2019-07-09  3:46 gregx.yeh
  2019-07-10  0:41 ` [edk2-devel] " Dandan Bi
  0 siblings, 1 reply; 3+ messages in thread
From: gregx.yeh @ 2019-07-09  3:46 UTC (permalink / raw)
  To: devel; +Cc: Dandan Bi, Ray Ni, Ted Kuo

https://bugzilla.tianocore.org/show_bug.cgi?id=1920
Check ConfigAccess protocol is available before process user input.

Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Ted Kuo <ted.kuo@intel.com>
---
 .../Universal/SetupBrowserDxe/Presentation.c       | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
index d7927725b2..7c36a6f2b7 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
@@ -20,6 +20,38 @@ UINT16             mCurFakeQestId;
 FORM_DISPLAY_ENGINE_FORM gDisplayFormData;
 BOOLEAN            mFinishRetrieveCall = FALSE;
 
+/**
+  Check whether the ConfigAccess protocol is available
+
+  @parm FormSet           FormSet of which the ConfigAcces protocol need to be checked.
+
+  @retval EFI_SUCCESS     The function executed successfully.
+
+**/
+EFI_STATUS
+CheckConfigAccess(
+  IN FORM_BROWSER_FORMSET  *FormSet
+  )
+{
+  EFI_STATUS                      Status;
+
+  Status = gBS->HandleProtocol (
+                  FormSet->DriverHandle,
+                  &gEfiHiiConfigAccessProtocolGuid,
+                  (VOID **) &FormSet->ConfigAccess
+                  );
+  if (EFI_ERROR (Status)) {
+    //
+    // Configuration Driver don't attach ConfigAccess protocol to its HII package
+    // list, then there will be no configuration action required.
+    // Or the ConfigAccess protocol has been uninstalled.
+    //
+    FormSet->ConfigAccess = NULL;
+  }
+
+  return EFI_SUCCESS;
+}
+
 /**
   Evaluate all expressions in a Form.
 
@@ -1686,6 +1718,8 @@ DisplayForm (
     return Status;
   }
 
+  CheckConfigAccess(gCurrentSelection->FormSet);
+
   Status = ProcessUserInput (&UserInput);
   FreeDisplayFormData();
   return Status;
-- 
2.16.2.windows.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-07-10  2:06 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-07-09  3:46 [PATCH] MdeModulePkg/Setup: Check ConfigAccess protocol in case it's destroyed gregx.yeh
2019-07-10  0:41 ` [edk2-devel] " Dandan Bi
2019-07-10  2:06   ` Wang, Jian J

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox