libdl: Fix dlerror non-conformance

Closes #3298
2025-11-16 12:34:45 +00:00 · 2019-02-02 15:19:59 +11:00
parent 2d8a9c794c
commit e2f13430be
1 changed files with 4 additions and 1 deletions
--- a/cpukit/libdl/dlfcn.c
+++ b/cpukit/libdl/dlfcn.c
@@ -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;
 }