[PATCH 4.13 13/43] spi: a3700: Return correct value on timeout detection

From: Greg Kroah-Hartman
Date: Tue Oct 31 2017 - 06:10:37 EST


4.13-stable review patch. If anyone has any objections, please let me know.

------------------

From: Maxime Chevallier <maxime.chevallier@xxxxxxxx>

commit 5a866ec0014b2baa4ecbb1eaa19c835482829d08 upstream.

When waiting for transfer completion, a3700_spi_wait_completion
returns a boolean indicating if a timeout occurred.

The function was returning 'true' everytime, failing to detect any
timeout.

This patch makes it return 'false' when a timeout is reached.

Signed-off-by: Maxime Chevallier <maxime.chevallier@xxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/spi/spi-armada-3700.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -392,7 +392,8 @@ static bool a3700_spi_wait_completion(st

spireg_write(a3700_spi, A3700_SPI_INT_MASK_REG, 0);

- return true;
+ /* Timeout was reached */
+ return false;
}

static bool a3700_spi_transfer_wait(struct spi_device *spi,