Re: [PATCH 02/04] s390: bus_id -> dev_set_name() changes

From: Greg KH
Date: Wed Jul 02 2008 - 19:11:35 EST


On Thu, Jul 03, 2008 at 02:14:01AM +0400, Anton Vorontsov wrote:
> On Wed, Jul 02, 2008 at 08:48:11AM -0700, Greg KH wrote:
> > From: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
> >
> > Convert most s390 users setting bus_id to dev_set_name().
> > css and ccw busses are deferred since they need some special
> > treatment.
> >
> > Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
> > Cc: Kay Sievers <kay.sievers@xxxxxxxx>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
> >
> > ---
> > drivers/s390/block/dcssblk.c | 2 +-
> > drivers/s390/char/vmlogrdr.c | 3 +--
> > drivers/s390/cio/ccwgroup.c | 3 +--
> > drivers/s390/cio/chp.c | 3 +--
> > drivers/s390/cio/css.c | 4 ++--
> > drivers/s390/crypto/ap_bus.c | 4 ++--
> > drivers/s390/net/netiucv.c | 2 +-
> > drivers/s390/s390_rdev.c | 2 +-
> > drivers/s390/scsi/zfcp_aux.c | 23 ++++++++---------------
> > 9 files changed, 18 insertions(+), 28 deletions(-)
> >
> > --- a/drivers/s390/block/dcssblk.c
> > +++ b/drivers/s390/block/dcssblk.c
> > @@ -349,7 +349,7 @@ dcssblk_add_store(struct device *dev, st
> > }
> >
> > strcpy(dev_info->segment_name, local_buf);
> > - strlcpy(dev_info->dev.bus_id, local_buf, BUS_ID_SIZE);
> > + dev_set_name(&dev_info->dev, local_buf);
>
> As I see it, dev_set_name accepts printf like string, so this
> dev_set_name is quite dangerous (since local_buf is formed
> by the module param), no?

So you would rather see:
dev_set_name(&dev_info->dev, "%s", local_buf);

instead?

thanks,

greg k-h
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