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efi_loader: simplify efi_locate_protocol

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Use helper function efi_search_protocol.

Do not print protocol guid twice in debug mode.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2017-10-26 19:25:57 +02:00 committed by Alexander Graf
parent 5810511dac
commit 9172cd91fa
1 changed files with 6 additions and 12 deletions
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18
lib/efi_loader/efi_boottime.c
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@ -1778,29 +1778,23 @@ static efi_status_t EFIAPI efi_locate_protocol(const efi_guid_t *protocol,
void **protocol_interface)
{
struct list_head *lhandle;
int i;
efi_status_t ret;
EFI_ENTRY("%pUl, %p, %p", protocol, registration, protocol_interface);
if (!protocol || !protocol_interface)
return EFI_EXIT(EFI_INVALID_PARAMETER);
EFI_PRINT_GUID("protocol", protocol);
list_for_each(lhandle, &efi_obj_list) {
struct efi_object *efiobj;
struct efi_handler *handler;
efiobj = list_entry(lhandle, struct efi_object, link);
for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
struct efi_handler *handler = &efiobj->protocols[i];
if (!handler->guid)
continue;
if (!guidcmp(handler->guid, protocol)) {
*protocol_interface =
handler->protocol_interface;
return EFI_EXIT(EFI_SUCCESS);
}
ret = efi_search_protocol(efiobj->handle, protocol, &handler);
if (ret == EFI_SUCCESS) {
*protocol_interface = handler->protocol_interface;
return EFI_EXIT(EFI_SUCCESS);
}
}
*protocol_interface = NULL;