1 files changed, 6 insertions, 1 deletions
diff --git a/monitor.c b/monitor.c
index f0ec84d52f..0448a70c10 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1057,6 +1057,7 @@ static int do_block_set_passwd(Monitor *mon, const QDict *qdict,
                                 QObject **ret_data)
 {
     BlockDriverState *bs;
+    int err;
 
     bs = bdrv_find(qdict_get_str(qdict, "device"));
     if (!bs) {
@@ -1064,7 +1065,11 @@ static int do_block_set_passwd(Monitor *mon, const QDict *qdict,
         return -1;
     }
 
-    if (bdrv_set_key(bs, qdict_get_str(qdict, "password")) < 0) {
+    err = bdrv_set_key(bs, qdict_get_str(qdict, "password"));
+    if (err == -EINVAL) {
+        qerror_report(QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs));
+        return -1;
+    } else if (err < 0) {
         qerror_report(QERR_INVALID_PASSWORD);
         return -1;
     }