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efi_loader: efi_handle_protocol set attributes

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UEFI spec 2.7 indicates that HandleProtocol can be implemented
by calling OpenProtocol with
attributes = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL.

Currently we pass attributes = 0 to efi_open_protocol. 0 is not a
valid value when calling OpenProtocol. This does not cause any errors
yet because our implementation of OpenProtocol is incomplete.

We should pass the correct value to enable a fully compliant
implementation of OpenProtocol in the future.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
xypron.glpk@gmx.de 2017-06-29 21:16:19 +02:00 • committed by Alexander Graf
parent 6e0bf8d8b4
commit 8e1d329ff5
1 changed files with 2 additions and 2 deletions
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4
lib/efi_loader/efi_boottime.c
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@ -752,8 +752,8 @@ static efi_status_t EFIAPI efi_handle_protocol(void *handle,
efi_guid_t *protocol,
void **protocol_interface)
{
return efi_open_protocol(handle, protocol, protocol_interface,
NULL, NULL, 0);
return efi_open_protocol(handle, protocol, protocol_interface, NULL,
NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
}
static const struct efi_boot_services efi_boot_services = {