Merge "msm: camera: sync: Flush work queue before close" into dev/msm-4.9-camx

		for (i = 1; i < CAM_SYNC_MAX_OBJS; i++) {

			struct sync_table_row *row =

			sync_dev->sync_table + i;

			if (row->state == CAM_SYNC_STATE_INVALID)

				continue;

			/* Signal all remaining objects as ERR,but we don't care

			 * about the return status here apart from logging it

			/*

			 * Signal all ACTIVE objects as ERR, but we don't

			 * care about the return status here apart from logging

			 * it.

			 */

			rc = cam_sync_signal(i, CAM_SYNC_STATE_SIGNALED_ERROR);

			if (row->state == CAM_SYNC_STATE_ACTIVE) {

				rc = cam_sync_signal(i,

					CAM_SYNC_STATE_SIGNALED_ERROR);

				if (rc < 0)

					CAM_ERR(CAM_SYNC,

					"Cleanup signal failed: idx = %d", i);

					  "Cleanup signal fail idx:%d\n",

					  i);

			}

		}

		/*

		 * Flush the work queue to wait for pending signal callbacks to

		 * finish

		 */

		flush_workqueue(sync_dev->work_queue);

		/*

		 * Now that all callbacks worker threads have finished,

		 * destroy the sync objects

		 */

		for (i = 1; i < CAM_SYNC_MAX_OBJS; i++) {

			struct sync_table_row *row =

			sync_dev->sync_table + i;

			if (row->state != CAM_SYNC_STATE_INVALID) {

				rc = cam_sync_destroy(i);

				if (rc < 0)

					CAM_ERR(CAM_SYNC,

					"Cleanup destroy failed: idx = %d", i);

					  "Cleanup destroy fail:idx:%d\n",

					  i);

			}

		}

	}

	mutex_unlock(&sync_dev->table_lock);