commit 986cdb862e4aafc92a1537e04388898fc42b8bc0
author Al Viro <viro@zeniv.linux.org.uk> Thu Sep 18 17:38:59 2014 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Wed Nov 19 12:57:14 2014 -0500
tree b35bba257013e6cb869cc51d8ced93fc05e5e764
parent cac7f2429872d3733dc3f9915857b1691da2eb2f

gfs2: bugger off early if O_CREAT open finds a directory

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/gfs2/inode.c

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index c4ed823..310e248 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -624,6 +624,11 @@
 	inode = gfs2_dir_search(dir, &dentry->d_name, !S_ISREG(mode) || excl);
 	error = PTR_ERR(inode);
 	if (!IS_ERR(inode)) {
+		if (S_ISDIR(inode->i_mode)) {
+			iput(inode);
+			inode = ERR_PTR(-EISDIR);
+			goto fail_gunlock;
+		}
 		d = d_splice_alias(inode, dentry);
 		error = PTR_ERR(d);
 		if (IS_ERR(d)) {