efi_loader: optional pointer for ConvertPointer
If the EFI_OPTIONAL_PTR is set in DebugDisposition, a NULL pointer does not
constitute an invalid parameter.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c
index 45baa2f..a4aa1d8 100644
--- a/lib/efi_loader/efi_runtime.c
+++ b/lib/efi_loader/efi_runtime.c
@@ -512,6 +512,12 @@
ret = EFI_INVALID_PARAMETER;
goto out;
}
+ if (!*address) {
+ if (debug_disposition & EFI_OPTIONAL_PTR)
+ return EFI_SUCCESS;
+ else
+ return EFI_INVALID_PARAMETER;
+ }
addr = (uintptr_t)*address;
for (i = 0; i < efi_descriptor_count; i++) {