ACPI: Defer enabling of level GPE until all pending notifies done

[cascardo/linux.git] / drivers / acpi / events / evgpe.c

diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 635ba44..b4509f9 100644 (file)
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -341,9 +341,8 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 
        /* A Non-NULL gpe_device means this is a GPE Block Device */
 
-       obj_desc =
-           acpi_ns_get_attached_object((struct acpi_namespace_node *)
-                                       gpe_device);
+       obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)
+                                              gpe_device);
        if (!obj_desc || !obj_desc->device.gpe_block) {
                return (NULL);
        }
@@ -502,6 +501,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
  *              an interrupt handler.
  *
  ******************************************************************************/
+static void acpi_ev_asynch_enable_gpe(void *context);
 
 static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 {
@@ -577,22 +577,30 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
                                         method_node)));
                }
        }
+       /* Defer enabling of GPE until all notify handlers are done */
+       acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe,
+                               gpe_event_info);
+       return_VOID;
+}
 
-       if ((local_gpe_event_info.flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
+static void acpi_ev_asynch_enable_gpe(void *context)
+{
+       struct acpi_gpe_event_info *gpe_event_info = context;
+       acpi_status status;
+       if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
            ACPI_GPE_LEVEL_TRIGGERED) {
                /*
                 * GPE is level-triggered, we clear the GPE status bit after
                 * handling the event.
                 */
-               status = acpi_hw_clear_gpe(&local_gpe_event_info);
+               status = acpi_hw_clear_gpe(gpe_event_info);
                if (ACPI_FAILURE(status)) {
                        return_VOID;
                }
        }
 
        /* Enable this GPE */
-
-       (void)acpi_hw_write_gpe_enable_reg(&local_gpe_event_info);
+       (void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
        return_VOID;
 }