[PATCH synaptics] Return true/false from SetDeviceAndProtocol

[Chase Douglas]

On 11/29/2011 03:40 PM, Peter Hutterer wrote:
> Instead of requiring the caller to know which private field indicates
> failure, just return true on success or false on failure.
> 
> No functional change.
> 
> Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>

Simple and better.

Reviewed-by: Chase Douglas <chase.douglas at canonical.com>