Merge branches 'acpi-scan', 'acpi-processor' and 'acpi-assorted'

[cascardo/linux.git] / drivers / acpi / osl.c

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3b8963f..21c1e71 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -19,10 +19,6 @@
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  */
@@ -83,6 +79,7 @@ static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
 static struct workqueue_struct *kacpi_notify_wq;
 static struct workqueue_struct *kacpi_hotplug_wq;
+static bool acpi_os_initialized;
 
 /*
  * This list of permanent mappings is for memory that may be accessed from
@@ -1316,6 +1313,9 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
        long jiffies;
        int ret = 0;
 
+       if (!acpi_os_initialized)
+               return AE_OK;
+
        if (!sem || (units < 1))
                return AE_BAD_PARAMETER;
 
@@ -1355,6 +1355,9 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units)
 {
        struct semaphore *sem = (struct semaphore *)handle;
 
+       if (!acpi_os_initialized)
+               return AE_OK;
+
        if (!sem || (units < 1))
                return AE_BAD_PARAMETER;
 
@@ -1863,6 +1866,7 @@ acpi_status __init acpi_os_initialize(void)
                rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register);
                pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv);
        }
+       acpi_os_initialized = true;
 
        return AE_OK;
 }