On Tue, Jul 18, 2017 at 09:42:21AM +0200, Johannes Thumshirn wrote:
> (commit 68c59fcea1f2c6a54c62aa896cc623c1b5bc9b47 upstream)
>
> SG_DXFER_FROM_DEV transfers do not necessarily have a dxferp as we set
> it to NULL for the old sg_io read/write interface, but must have a
> length bigger than 0. This fixes a regression introduced by commit
> 28676d869bbb ("scsi: sg: check for valid direction before starting the
> request")
>
> Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
> Fixes: 28676d869bbb ("scsi: sg: check for valid direction before starting the request")
> Reported-by: Chris Clayton <chris2553@xxxxxxxxxxxxxx>
> Tested-by: Chris Clayton <chris2553@xxxxxxxxxxxxxx>
> Cc: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
> Tested-by: Chris Clayton <chris2553@xxxxxxxxxxxxxx>
> Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
> ---
> drivers/scsi/sg.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
What stable tree(s) do you want this to be applied to?
thanks,
greg k-h