vfs: do_last(): check LOOKUP_DIRECTORY
Check for ENOTDIR before finishing open. This allows this code to be shared
between O_CREAT and plain opens.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/namei.c b/fs/namei.c
index a7e994b..4767c05 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2386,6 +2386,9 @@
error = -EISDIR;
if (S_ISDIR(nd->inode->i_mode))
goto exit;
+ error = -ENOTDIR;
+ if ((nd->flags & LOOKUP_DIRECTORY) && !nd->inode->i_op->lookup)
+ goto exit;
ok:
if (!S_ISREG(nd->inode->i_mode))
will_truncate = 0;