diff options
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 64077e87477a..739a4a6b3b9b 100644 --- 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 - * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * */ @@ -84,6 +80,7 @@ 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 @@ -1289,6 +1286,9 @@ 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; @@ -1328,6 +1328,9 @@ 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; @@ -1836,6 +1839,7 @@ 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; } |