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>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 2a172299b24c..e08cf98f504f 100644
--- 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;
 }