On Wed, Feb 26, 2020 at 13:41:03 +0100, Ard Biesheuvel wrote:
> Commit 2fe25a74d6fee3c2 ("ArmPkg/MmCommunicationDxe: relay architected PI
> events to MM context") update the ARM specific standalone MM client
> driver to register for certain events in the entrypoint code, but did
> so in a way that makes the entrypoint always return with an error.
>
> Instead, return EFI_SUCCESS if registering for those events succeeds,
> and back out the registrations that did succeed if one fails, and
> return an error.
>
> Fixes: 2fe25a74d6fee3c2 ("ArmPkg/MmCommunicationDxe: relay architected PI
> events to MM context")
> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
Reviewed-by: Leif Lindholm <l...@nuviainc.com>
Are you looking for this one to make the stable tag? You're not
explicitly asking for it, but you're cc:ing Liming.
> ---
> ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c
> b/ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c
> index a4ee4dcd864c..6c06b3574861 100644
> --- a/ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c
> +++ b/ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.c
> @@ -385,8 +385,16 @@ MmCommunication2Initialize (
> MmGuidedEventNotify, mGuidedEventGuid[Index],
> mGuidedEventGuid[Index], &mGuidedEvent[Index]);
> ASSERT_EFI_ERROR (Status);
> + if (EFI_ERROR (Status)) {
> + while (Index-- > 0) {
> + gBS->CloseEvent (mGuidedEvent[Index]);
> + }
> + goto UninstallProtocol;
> + }
> }
> + return EFI_SUCCESS;
>
> +UninstallProtocol:
> gBS->UninstallProtocolInterface (
> mMmCommunicateHandle,
> &gEfiMmCommunication2ProtocolGuid,
> --
> 2.17.1
>
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