On Fri, Sep 03, 2021 at 04:08:48PM +0200, Heiko Carstens wrote: > On Thu, Sep 02, 2021 at 10:41:03AM -0700, Luis Chamberlain wrote: > > We never checked for errors on add_disk() as this function > > returned void. Now that this is fixed, use the shiny new > > error handling. > > > > Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx> > > --- > > drivers/s390/block/dcssblk.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c > > index 5be3d1c39a78..b0fd5009a12e 100644 > > --- a/drivers/s390/block/dcssblk.c > > +++ b/drivers/s390/block/dcssblk.c > > @@ -696,7 +696,9 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char > > } > > > > get_device(&dev_info->dev); > > - device_add_disk(&dev_info->dev, dev_info->gd, NULL); > > + 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? Luis
