
On 27 August 2017 at 06:53, Heinrich Schuchardt xypron.glpk@gmx.de wrote:
efi_open_protocol and efi_close_protocol have to keep track of opened protocols.
efi_close_protocol has to mark the appropriate entry as empty.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
lib/efi_loader/efi_boottime.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-)
Reviewed-by: Simon Glass sjg@chromium.org
Again I wonder if you can use a utility function to find the slot.
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 294bc1f138..c9aec597a2 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -944,9 +944,40 @@ static efi_status_t EFIAPI efi_close_protocol(void *handle, void *agent_handle, void *controller_handle) {
struct efi_handler *handler;
size_t i;
struct efi_open_protocol_info_entry *open_info;
efi_status_t r;
EFI_ENTRY("%p, %p, %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;
for (i = 0; i < ARRAY_SIZE(handler->open_info); ++i) {
open_info = &handler->open_info[i];
if (!open_info->open_count)
continue;
if (open_info->agent_handle == agent_handle &&
open_info->controller_handle ==
controller_handle) {
open_info->open_count--;
r = EFI_SUCCESS;
goto out;
}
}
r = EFI_NOT_FOUND;
+out:
return EFI_EXIT(r);
}
static efi_status_t EFIAPI efi_open_protocol_information(efi_handle_t handle,
2.14.1