Merge "msm: vidc: Handle race condition for accessing session head"

	struct venus_hfi_device *device = &venus_hfi_dev;

	int rc = 0;

	if (!__is_session_valid(device, session, __func__))

		return -EINVAL;

	mutex_lock(&device->lock);

	if (!__is_session_valid(device, session, __func__)) {

		rc = -EINVAL;

		goto exit;

	}

	if (msm_vidc_fw_coverage) {

		if (__sys_set_coverage(device, msm_vidc_fw_coverage,

				session->sid))

			s_vpr_e(session->sid, "Fw_coverage msg ON failed\n");

	}

	rc = __send_session_cmd(session, HFI_CMD_SYS_SESSION_END);

exit:

	mutex_unlock(&device->lock);

	return rc;

}