vfs: nameidata_to_filp(): don't throw away file on error

If open fails, don't put the file.  This allows it to be reused if open needs to
be retried.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/open.c
Simple merge