diff options
Diffstat (limited to 'drivers/acpi/acpica/utosi.c')
| -rw-r--r-- | drivers/acpi/acpica/utosi.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 36a7d361d7c..7e807725c63 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -108,9 +108,14 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = { acpi_status acpi_ut_initialize_interfaces(void) { + acpi_status status; u32 i; - (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return (status); + } + acpi_gbl_supported_interfaces = acpi_default_supported_interfaces; /* Link the static list of supported interfaces */ @@ -132,20 +137,24 @@ acpi_status acpi_ut_initialize_interfaces(void) * * PARAMETERS: None * - * RETURN: None + * RETURN: Status * * DESCRIPTION: Delete all interfaces in the global list. Sets * acpi_gbl_supported_interfaces to NULL. * ******************************************************************************/ -void acpi_ut_interface_terminate(void) +acpi_status acpi_ut_interface_terminate(void) { + acpi_status status; struct acpi_interface_info *next_interface; - (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); - next_interface = acpi_gbl_supported_interfaces; + status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return (status); + } + next_interface = acpi_gbl_supported_interfaces; while (next_interface) { acpi_gbl_supported_interfaces = next_interface->next; @@ -160,6 +169,7 @@ void acpi_ut_interface_terminate(void) } acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (AE_OK); } /******************************************************************************* @@ -315,6 +325,7 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state) union acpi_operand_object *return_desc; struct acpi_interface_info *interface_info; acpi_interface_handler interface_handler; + acpi_status status; u32 return_value; ACPI_FUNCTION_TRACE(ut_osi_implementation); @@ -336,7 +347,11 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state) /* Default return value is 0, NOT SUPPORTED */ return_value = 0; - (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + acpi_ut_remove_reference(return_desc); + return_ACPI_STATUS(status); + } /* Lookup the interface in the global _OSI list */ |