Re: [PATCH] usb-storage: report underflow with no sense data

[Greg KH <greg@xxxxxxxxx>]

On Tue, Sep 02, 2008 at 10:12:11AM -0400, Alan Stern wrote:
> This patch (as1118) addresses a problem with certain USB mass-storage
> devices.  These devices sometimes return less data than asked for and
> then provide no sense data to explain the problem.  Currently
> usb-storage leaves it up to the SCSI layer to decide how this should
> be handled, and the SCSI layer interprets the lack of sense data to
> mean that nothing went wrong.  But if we got less data than required
> then something definitely _did_ go wrong, and we should say so.
> 
> The patch tells the SCSI layer to retry the command when this sort of
> thing happens.  Retrying may not solve the underlying problem, but
> it's better than believing that data was transferred when it wasn't.
> 
> Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

Is this a 2.6.27 or .28 patch?

thanks,

greg k-h
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