diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 7d1aac3..4967643 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -1919,7 +1919,7 @@
 		size = size>>16;
 		size *= 4;
 		if (size > MAX_MESSAGE_SIZE) {
-			rcode = EINVAL;
+			rcode = -EINVAL;
 			goto cleanup;
 		}
 		/* Copy in the user's I2O command */