diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 8cf9905d484be5fc120b2e05a65103f0acad95c9..f4183d660258108728a626b73c22798ba4699570 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -1115,6 +1115,9 @@ chsc_enable_facility(int operation_code)
 		goto out;
 	}
 	switch (sda_area->response.code) {
+	case 0x0001: /* everything ok */
+		ret = 0;
+		break;
 	case 0x0003: /* invalid request block */
 	case 0x0007:
 		ret = -EINVAL;
@@ -1123,6 +1126,8 @@ chsc_enable_facility(int operation_code)
 	case 0x0101: /* facility not provided */
 		ret = -EOPNOTSUPP;
 		break;
+	default: /* something went wrong */
+		ret = -EIO;
 	}
  out:
 	free_page((unsigned long)sda_area);