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efi_loader: open_info in CloseProtocol

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efi_open_protocol and efi_close_protocol have to keep track of
opened protocols.

Check if the protocol was opened for the same agent and
controller.

Remove all open protocol information for this pair.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-01-11 08:15:59 +01:00 committed by Alexander Graf
parent 191a41cc32
commit 3b8a489c9f
1 changed files with 25 additions and 1 deletions
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26
lib/efi_loader/efi_boottime.c
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@ -1695,9 +1695,33 @@ static efi_status_t EFIAPI efi_close_protocol(void *handle,
void *agent_handle,
void *controller_handle)
{
struct efi_handler *handler;
struct efi_open_protocol_info_item *item;
struct efi_open_protocol_info_item *pos;
efi_status_t r;
EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, agent_handle,
controller_handle);
return EFI_EXIT(EFI_NOT_FOUND);
if (!agent_handle) {
r = EFI_INVALID_PARAMETER;
goto out;
}
r = efi_search_protocol(handle, protocol, &handler);
if (r != EFI_SUCCESS)
goto out;
r = EFI_NOT_FOUND;
list_for_each_entry_safe(item, pos, &handler->open_infos, link) {
if (item->info.agent_handle == agent_handle &&
item->info.controller_handle == controller_handle) {
efi_delete_open_info(item);
r = EFI_SUCCESS;
break;
}
}
out:
return EFI_EXIT(r);
}
/*