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stub: don't ask for variable data we actually don't care about

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Let's take benefit of the fact that efivar_get_xyz() take NULL pointers
for the return data: let's shorten the code a bit.
This commit is contained in:
Lennart Poettering 2019-02-08 16:49:09 +01:00
parent 0d957ef6cf
commit 8118fb3c83
1 changed files with 4 additions and 4 deletions
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8
src/boot/efi/stub.c
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@ -92,7 +92,7 @@ EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
efivar_set(L"LoaderDevicePartUUID", uuid, FALSE);
/* if LoaderImageIdentifier is not set, assume the image with this stub was loaded directly from UEFI */
if (efivar_get_raw(&loader_guid, L"LoaderImageIdentifier", &b, &size) != EFI_SUCCESS) {
if (efivar_get_raw(&loader_guid, L"LoaderImageIdentifier", NULL, NULL) != EFI_SUCCESS) {
_cleanup_freepool_ CHAR16 *s;
s = DevicePathToStr(loaded_image->FilePath);
@ -100,7 +100,7 @@ EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
}
/* if LoaderFirmwareInfo is not set, let's set it */
if (efivar_get_raw(&loader_guid, L"LoaderFirmwareInfo", &b, &size) != EFI_SUCCESS) {
if (efivar_get_raw(&loader_guid, L"LoaderFirmwareInfo", NULL, NULL) != EFI_SUCCESS) {
_cleanup_freepool_ CHAR16 *s;
s = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
@ -108,7 +108,7 @@ EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
}
/* ditto for LoaderFirmwareType */
if (efivar_get_raw(&loader_guid, L"LoaderFirmwareType", &b, &size) != EFI_SUCCESS) {
if (efivar_get_raw(&loader_guid, L"LoaderFirmwareType", NULL, NULL) != EFI_SUCCESS) {
_cleanup_freepool_ CHAR16 *s;
s = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff);
@ -116,7 +116,7 @@ EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
}
/* add StubInfo */
if (efivar_get_raw(&loader_guid, L"StubInfo", &b, &size) != EFI_SUCCESS)
if (efivar_get_raw(&loader_guid, L"StubInfo", NULL, NULL) != EFI_SUCCESS)
efivar_set(L"StubInfo", L"systemd-stub " GIT_VERSION, FALSE);
if (szs[3] > 0)