On Mon, Oct 07, 2013 at 02:06:53PM +0100, Daniel Stone wrote:
> evdev always tries to allocate the event buffer for clients using
> kzalloc rather than vmalloc, presumably to avoid mapping overhead where
> possible.  However, drivers like bcm5974, which claims support for
> reporting 16 fingers simultaneously, can have an extraordinarily large
> buffer.  The resultant contiguous order-4 allocation attempt fails due
> to fragmentation, and the device is thus unusable until reboot.
> 
> Try kzalloc if we can to avoid the mapping overhead, but if that fails,
> fall back to vzalloc.
> 
> Signed-off-by: Daniel Stone <[email protected]>

Applied, thank you Daniel.

-- 
Dmitry
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