[PATCH] USB: set device dma_mask without reference to global data

[Arnd Bergmann]

On Wednesday 08 May 2013, Alan Stern wrote:
> > The first occurence was apparently in 3.3, but only in ehci-tegra.c,
> > while the other drivers subsequently copied the bug.
> 
> An alternative solution -- perhaps not better but also not relying on
> coherent_dma_mask -- is to clear pdev->dev.dma_mask in the remove
> routine if it points to the static mask value.
> 

Yes, I thought about that, but couldn't see any advantage one way
or the other and this one seemed simpler.

	Arnd