Unverified Commit 4e0b82ee authored Apr 16, 2018 by Sylwester Nawrocki Committed by Mark Brown Apr 17, 2018

spi: spi-s3c64xx: Do not ignore timeout errors in polling I/O mode



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.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 1c75862d

drivers/spi/spi-s3c64xx.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -503,6 +503,8 @@ static int wait_for_pio(struct s3c64xx_spi_driver_data *sdd,
		status = readl(regs + S3C64XX_SPI_STATUS);
		} while (RX_FIFO_LVL(status, sdd) < xfer->len && --val);

		if (!val)
		return -EIO;

		/* If it was only Tx */
		if (!xfer->rx_buf) {