diff options
Diffstat (limited to 'winsup/cygwin/fhandler_fifo.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_fifo.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc index 4ff94bb4e..742b70c10 100644 --- a/winsup/cygwin/fhandler_fifo.cc +++ b/winsup/cygwin/fhandler_fifo.cc @@ -184,14 +184,15 @@ fhandler_fifo::dup (fhandler_base *child) if (!res) { fhandler_fifo *ff = (fhandler_fifo *) child; - if (!DuplicateHandle (hMainProc, get_output_handle (), hMainProc, - &ff->get_output_handle (), false, true, - DUPLICATE_SAME_ACCESS)) + if (get_output_handle () + && !DuplicateHandle (hMainProc, get_output_handle (), hMainProc, + &ff->get_output_handle (), false, true, + DUPLICATE_SAME_ACCESS)) { __seterrno (); child->close (); res = -1; } } - return 0; + return res; } |