Fix d0fc344bf

("Shorten the ngspice message when performing operating point evaluation.
 The average user often complained about useless 'info'.
 The old output is now available when 'set ngdebug' in .spiceinit.",
 2023-08-19)
Return with 0 if optran has been successful.

src/spicelib/analysis/cktop.c

@@ -99,6 +99,8 @@ CKTop (CKTcircuit *ckt, long int firstmode, long int continuemode,
         fprintf(cp_err, "Error: Transient op failed, timestep too small\n\n");
     else if (converged != 0 && converged != prevconverged)
         fprintf(cp_err, "Error: Transient op failed, cause unrecorded\n\n");
+    else if (converged == 0)
+            return converged;
 
 #ifdef XSPICE
     /* gtri - wbk - add convergence problem reporting flags */