From: Miklos Szeredi <miklos@szeredi.hu>
Date: Fri, 23 Sep 2005 11:25:28 +0000 (+0000)
Subject: fix
X-Git-Tag: fuse_2_4_0_rc1~6
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6becf0b8644c0536fa12faef3d023134dcb3a100;p=qemu-gpiodev%2Flibfuse.git

fix
---

diff --git a/ChangeLog b/ChangeLog
index e8e5ab0..8c91f35 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-09-23  Miklos Szeredi <miklos@szeredi.hu>
+
+	* Check for special node ID values in LOOKUP/MK*
+
 2005-09-22  Miklos Szeredi <miklos@szeredi.hu>
 
 	* Slight optimization in returning EINVAL error in case of an open
diff --git a/kernel/dir.c b/kernel/dir.c
index e8b2d0f..3428668 100644
--- a/kernel/dir.c
+++ b/kernel/dir.c
@@ -112,7 +112,9 @@ static int fuse_lookup_iget(struct inode *dir, struct dentry *entry,
 	fuse_lookup_init(req, dir, entry, &outarg);
 	request_send(fc, req);
 	err = req->out.h.error;
-	if (!err) {
+	if (!err && outarg.nodeid == FUSE_ROOT_ID)
+		err = -EIO;
+	else if (!err && outarg.nodeid) {
 		inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
 				  &outarg.attr);
 		if (!inode) {
@@ -168,6 +170,10 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
 		fuse_put_request(fc, req);
 		return err;
 	}
+	if (!outarg.nodeid || outarg.nodeid == FUSE_ROOT_ID) {
+		fuse_put_request(fc, req);
+		return -EIO;
+	}
 	inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
 			  &outarg.attr);
 	if (!inode) {