Commit 13a42798 authored Jan 18, 2014 by Axel Lin Committed by Mark Brown Jan 21, 2014

spi: core: Fix transfer failure when master->transfer_one returns positive value



master->transfer_one returns positive value is not a error.
So set ret to 0 when master->transfer_one returns positive value.
Otherwise, I hit "spi_master spi0: failed to transfer one message from queue"
error when my transfer_one callback returns 1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

parent bd6857a0

drivers/spi/spi.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -599,8 +599,10 @@ static int spi_transfer_one_message(struct spi_master *master,
		goto out;
		}

		if (ret > 0)
		if (ret > 0) {
		ret = 0;
		wait_for_completion(&master->xfer_completion);
		}

		trace_spi_transfer_stop(msg, xfer);

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