[PATCH] Add a missing NULL check for device->grab.

[Tiago Vignatti]

On Tue, Jan 11, 2011 at 12:40:38PM -0800, ext Dima Ryazanov wrote:
> [second attempt]
> 
> Wayland compositor sometimes crashes if you start a client, move the client's window, then right-click and drag the empty space.
> Not sure if that's the correct solution, but it fixes the crash.
> 
> Signed-off-by: Dima Ryazanov <dima at gmail.com>

nice. It applied seamless this time here and fix the crash:
Tested-by: Tiago Vignatti <tiago.vignatti at nokia.com>

however the same comments regarding the correctness of the patch still
apply.


Thanks!
            Tiago