virtual plugin: Fixed off-by-one in virtual_max_open_mailboxes check.

diff --git a/src/plugins/virtual/virtual-storage.c b/src/plugins/virtual/virtual-storage.c
index 4eed40a2fc96384854608e4942b97f0366cb1384..908fe30f81f84d218bda1ede99ed6924ea61e63d 100644 (file)
--- a/src/plugins/virtual/virtual-storage.c
+++ b/src/plugins/virtual/virtual-storage.c
@@ -371,7 +371,7 @@ void virtual_backend_mailbox_opened(struct mailbox *box)
 
        /* the backend mailbox was already opened. if we didn't get here
           from virtual_backend_box_open() we may need to close a mailbox */
-       while (mbox->backends_open_count > mbox->storage->max_open_mailboxes &&
+       while (mbox->backends_open_count >= mbox->storage->max_open_mailboxes &&
               virtual_backend_box_close_any_except(mbox, bbox))
                ;