open: fix bug introduced in handling of invalid directory paths during an open

diff --git a/Kernel/syscall_fs3.c b/Kernel/syscall_fs3.c
index 9cdf2f9..1473f17 100644 (file)
--- a/Kernel/syscall_fs3.c
+++ b/Kernel/syscall_fs3.c
@@ -53,7 +53,7 @@ arg_t _open(void)
                }
        } else {
                /* The n_open failed */
-               if (udata.u_error == EFAULT)
+               if (udata.u_error == EFAULT || parent == NULL)
                        goto cantopen;
 
                /* New file */