ACPICA: Update for GCC 4

Fixes several issues with GCC 4.6 related to the new checks for
unused variables.

http://www.acpica.org/bugzilla/show_bug.cgi?id=935

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 7d797e2baecd..302c74e26f95 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -293,14 +293,10 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 
 acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
 {
-        acpi_thread_id this_thread_id;
-
         ACPI_FUNCTION_NAME(ut_release_mutex);
 
-        this_thread_id = acpi_os_get_thread_id();
-
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %u releasing Mutex [%s]\n",
-                          (u32)this_thread_id,
+                          (u32)acpi_os_get_thread_id(),
                           acpi_ut_get_mutex_name(mutex_id)));
 
         if (mutex_id > ACPI_MAX_MUTEX) {
@@ -329,7 +325,8 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
                  * the ACPI subsystem code.
                  */
                 for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
-                        if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
+                        if (acpi_gbl_mutex_info[i].thread_id ==
+                            acpi_os_get_thread_id()) {
                                 if (i == mutex_id) {
                                         continue;
                                 }