diff options
Diffstat (limited to 'drivers/acpi/dispatcher/dsmethod.c')
| -rw-r--r-- | drivers/acpi/dispatcher/dsmethod.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c index fac39ba4a7b44..9f0456cb9bb55 100644 --- a/drivers/acpi/dispatcher/dsmethod.c +++ b/drivers/acpi/dispatcher/dsmethod.c @@ -448,7 +448,16 @@ acpi_ds_restart_control_method ( */ walk_state->return_desc = return_desc; } - else { + + /* + * The following code is the + * optional support for a so-called "implicit return". Some AML code + * assumes that the last value of the method is "implicitly" returned + * to the caller. Just save the last result as the return value. + * NOTE: this is optional because the ASL language does not actually + * support this behavior. + */ + else if (!acpi_ds_do_implicit_return (return_desc, walk_state, FALSE)) { /* * Delete the return value if it will not be used by the * calling method |