[U-Boot] [PATCH 2/2] efi_loader: do not set invalid screen mode

EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetMode() should return EFI_UNDEFINED if a screen mode is not available.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- lib/efi_loader/efi_console.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index d5222c46b4..540a009145 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -375,6 +375,10 @@ static efi_status_t EFIAPI efi_cout_set_mode(

if (mode_number >= efi_con_mode.max_mode) return EFI_EXIT(EFI_UNSUPPORTED); + + if (!efi_cout_modes[mode_number].present) + return EFI_EXIT(EFI_UNSUPPORTED); + efi_con_mode.mode = mode_number; EFI_CALL(efi_cout_clear_screen(this));

-- 2.23.0.rc1