ACPI: EC: Block queries until EC is fully initialized

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 2a172299b24c8b9b6be48eb27fa115517fa44776..e08cf98f504f12583174d23468a60bf4f9a28c14 100644 (file)
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -599,7 +599,7 @@ static struct acpi_ec *make_acpi_ec(void)
        if (!ec)
                return NULL;
 
-       atomic_set(&ec->query_pending, 0);
+       atomic_set(&ec->query_pending, 1);
        atomic_set(&ec->event_count, 1);
        mutex_init(&ec->lock);
        init_waitqueue_head(&ec->wait);
@@ -715,6 +715,9 @@ static int ec_install_handlers(struct acpi_ec *ec)
                return -ENODEV;
        }
 
+       /* EC is fully operational, allow queries */
+       atomic_set(&ec->query_pending, 0);
+
        return 0;
 }