mei: amthif: use service function to flush amthif queue

Replace open coded loop with an existing service function:
mei_io_list_flush

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4e3cba6d..19709b7 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -556,8 +556,6 @@
 {
 	unsigned long timeout;
 	struct mei_cl *cl;
-	struct mei_cl_cb  *cb_pos = NULL;
-	struct mei_cl_cb  *cb_next = NULL;
 
 	struct mei_device *dev = container_of(work,
 					struct mei_device, timer_work.work);
@@ -632,15 +630,8 @@
 
 			dev_dbg(&dev->pdev->dev, "freeing AMTHI for other requests\n");
 
-			list_for_each_entry_safe(cb_pos, cb_next,
-				&dev->amthif_rd_complete_list.list, list) {
-
-				cl = cb_pos->file_object->private_data;
-
-				/* Finding the AMTHI entry. */
-				if (cl == &dev->iamthif_cl)
-					list_del(&cb_pos->list);
-			}
+			mei_io_list_flush(&dev->amthif_rd_complete_list,
+				&dev->iamthif_cl);
 			mei_io_cb_free(dev->iamthif_current_cb);
 			dev->iamthif_current_cb = NULL;