[PATCH] spi: bcm2835: Add spi_master_get() call to prevent use after free

[Mark Brown]

On Thu, Aug 22, 2013 at 08:48:36PM +0800, Axel Lin wrote:

> BTW, In current code it looks like we have an extra spi_master_put() call.
> I guess just nobody compile this driver as a module.

Yes, or removed it if they did - I can't see a use case for doing that
except testing in development so it's not surprising.
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