--- a/src/drv_tapi_ioctl.c
+++ b/src/drv_tapi_ioctl.c
@@ -702,7 +702,8 @@ static IFX_int32_t TAPI_IoctlDev (IFX_TA
 
                if (ret == TAPI_statusOk || ret == 1)
                {
-                  copy_to_user ((IFX_void_t*)ioarg, p_tmp, sizeof(IFX_TAPI_CAP_t));
+                  if (copy_to_user ((IFX_void_t*)ioarg, p_tmp, sizeof(IFX_TAPI_CAP_t)))
+                     ret = TAPI_statusErrKernCpy;
                }
             }
             TAPI_OS_Free (p_tmp);
