mei: gsc: wait for reset thread on stop

Wait for reset work to complete before initiating
stop reset flow sequence.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907215113.1596567-8-tomas.winkler@intel.comAcked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

drivers/misc/mei/init.c

 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
+ * Copyright (c) 2012-2022, Intel Corporation. All rights reserved.
  * Intel Management Engine Interface (Intel MEI) Linux driver
  */
 
@@ -320,6 +320,8 @@ void mei_stop(struct mei_device *dev)
 
 	mei_clear_interrupts(dev);
 	mei_synchronize_irq(dev);
+	/* to catch HW-initiated reset */
+	mei_cancel_work(dev);
 
 	mutex_lock(&dev->device_lock);