Re: [Stable-review] [25/29] USB: fix usbstorage for 2770:915ddelivers no FAT

From: Ben Hutchings
Date: Fri Jan 22 2010 - 21:45:39 EST

On Fri, 2010-01-22 at 16:10 -0800, Greg KH wrote:
> 2.6.32-stable review patch. If anyone has any objections, please let us know.
> ------------------
> From: Ryan May <rmay31@xxxxxxxxx>
> commit 10d2cdb6102669279bee2d9a00a22431b74583d5 upstream.
> Resolves bug 14914.
> Remove entry for 2770:915d (usb digital camera with mass storage
> support) from unusual_devs.h. The fix triggered by the entry causes
> the file system on the camera to be completely inaccessible (no
> partition table, the device is not mountable).
> The patch works, but let me clarify a few things about it. All the
> patch does is remove the entry for this device from the
> drivers/usb/storage/unusual_devs.h, which is supposed to help with a
> problem with the device's reported size (I think). I'm pretty sure it
> was originally added for a reason, so I'm not sure removing it won't
> cause other problems to reappear. Also, I should note that this
> unusual_devs.h entry was present (and activating workarounds) in
> 2.6.29, but in that version everything works fine. Starting with
> 2.6.30, things no longer work.

It doesn't sound like this bug or fix are sufficiently well understood
yet to be suitable for a stable update. The bug report is currently
marked as invalid!


Ben Hutchings
Any smoothly functioning technology is indistinguishable from a rigged demo.

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