From: Alan Cox <alan@linux.intel.com>
Date: Tue, 30 Aug 2016 22:10:59 +0000 (+0100)
Subject: open: fix bug introduced in handling of invalid directory paths during an open
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=cac7b00003b79b46713b163b877e95f3b345e668;p=FUZIX.git

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 9cdf2f91..1473f174 100644
--- 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 */