[PATCH 4/6] spi: spi-s3c64xx: Do not ignore timeout errors in polling I/O mode

[Mark Brown]

On Mon, Apr 16, 2018 at 05:40:19PM +0200, Sylwester Nawrocki wrote:
> Currently timeout errors in polling I/O mode transfer are silently ignored.
> Fix it by returning an error when we time out waiting on the RX FIFO level
> to reach the transfer length.

This would probably have been better sent as a fix before the cosmetic
updates.
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