On Mon, Sep 06, 2021 at 01:43:46PM +0200, Gerald Schaefer wrote: > On Fri, 3 Sep 2021 18:46:26 -0700 > Luis Chamberlain <mcgrof@xxxxxxxxxx> wrote: > > > > + rc = device_add_disk(&dev_info->dev, dev_info->gd, NULL); > > > > + if (rc) > > > > + goto put_dev; > > > > > > This looks not correct to me. We seem to have now in case of an error: > > > > > > - reference count imbalance (= memory leak) > > > - dax cleanup is missing > > > > Care to provide an alternative? > > See patch below: > > From 7053b5f8c0a126c3ef450de3668d9963bd68ceaa Mon Sep 17 00:00:00 2001 > From: Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx> > Date: Mon, 6 Sep 2021 13:18:53 +0200 > Subject: [PATCH] s390/block/dcssblk: add error handling support for add_disk() > > Signed-off-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx> > --- > drivers/s390/block/dcssblk.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) Thanks Gerald! FWIW: Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>