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authorGregX Yeh <devel@edk2.groups.io>2019-07-09 11:46:54 +0000
committerJian J Wang <jian.j.wang@intel.com>2019-07-10 09:57:52 +0800
commit034a3b4f555c6844673a5ee6b7aa4faa74e90a6e (patch)
tree219003351ebdc0a4b000ee99dd8eb41df1b3ef70 /MdeModulePkg
parent688ec2d00651471a7f90537aef973b9c94931fd6 (diff)
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MdeModulePkg/Setup: Check ConfigAccess protocol in case it's destroyed
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> Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Diffstat (limited to 'MdeModulePkg')
-rw-r--r--MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c34
1 files changed, 34 insertions, 0 deletions
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
@@ -21,6 +21,38 @@ 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.
@param FormSet FormSet this Form belongs to.
@@ -1686,6 +1718,8 @@ DisplayForm (
return Status;
}
+ CheckConfigAccess(gCurrentSelection->FormSet);
+
Status = ProcessUserInput (&UserInput);
FreeDisplayFormData();
return Status;