librbd: fix a incorrect input for cpp_strerror()

Signed-off-by: Dongsheng Yang <dongsheng.yang@easystack.cn>

diff --git a/src/librbd/internal.cc b/src/librbd/internal.cc
index 3fda312da57a6491edd76b9c526618134f6d52f7..5603803e4bf4f5e9eab0f67c89343787535768da 100644 (file)
--- a/src/librbd/internal.cc
+++ b/src/librbd/internal.cc
@@ -1465,7 +1465,7 @@ int mirror_image_disable_internal(ImageCtx *ictx, bool force,
     int r = p_imctx->state->open();
     if (r < 0) {
       lderr(cct) << "error opening parent image: "
-                << cpp_strerror(-r) << dendl;
+                << cpp_strerror(r) << dendl;
       delete p_imctx;
       return r;
     }