libdl: Fix dlerror non-conformance

Closes #3298
2026-09-22 06:54:41 +08:00 · 2019-02-09 10:06:33 +11:00
parent 2d8a9c794c
commit e2f13430be
1 changed files with 4 additions and 1 deletions
@@ -129,7 +129,10 @@ const char*
 dlerror (void)
 {
  static char msg[64];
-  rtems_rtl_get_error (msg, sizeof (msg));
+  int         eno;
+  eno = rtems_rtl_get_error (msg, sizeof (msg));
+  if (eno == 0)
+    return NULL;
  return msg;
 }