From: Ben Gras <ben@minix3.org>
Date: Tue, 17 Feb 2009 09:50:02 +0000 (+0000)
Subject: Checking wrong inode pointer for refcount in mount (!)
X-Git-Tag: v3.1.4~106
X-Git-Url: http://zhaoyanbai.com/repos/%22https:/www.google.com/jsapi/static//%22%22?a=commitdiff_plain;h=570b9cd753faa8c487d16f7dfb4374b89418da07;p=minix.git

Checking wrong inode pointer for refcount in mount (!)
---

diff --git a/servers/vfs/mount.c b/servers/vfs/mount.c
index 518253a35..bf0777694 100644
--- a/servers/vfs/mount.c
+++ b/servers/vfs/mount.c
@@ -102,7 +102,7 @@ PRIVATE int mount_fs(endpoint_t fs_e)
   struct dmap *dp;
   dev_t dev;
   message m;
-  struct vnode *vp, *root_node, *mounted_on, *bspec;
+  struct vnode *root_node, *mounted_on, *bspec;
   struct vmnt *vmp;
   char *label;
   struct node_details res;
@@ -194,9 +194,9 @@ PRIVATE int mount_fs(endpoint_t fs_e)
 	r = lookup_vp(0 /*flags*/, 0 /*!use_realuid*/, &mounted_on);
 	if (r != OK) return r;
 
-	if (vp->v_ref_count != 1)
+	if (mounted_on->v_ref_count != 1)
 	{
-		put_vnode(vp);
+		put_vnode(mounted_on);
 		printf("vfs:mount_fs: mount point is busy\n");
 		return EBUSY;
 	}