Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 24a0013a authored by Mark Brown's avatar Mark Brown
Browse files

spi: More sanity checks for transfers 



Check that transfers are non-empty and that there is a completion for
them.

Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent a2fd4f9f

drivers/spi/spi.c

+5 −0
Original line number Diff line number Diff line
@@ -1351,6 +1351,11 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) 
	struct spi_master *master = spi->master;

	struct spi_transfer *xfer;



	if (list_empty(&message->transfers))

		return -EINVAL;

	if (!message->complete)

		return -EINVAL;



	/* Half-duplex links include original MicroWire, and ones with

	 * only one data pin like SPI_3WIRE (switches direction) or where

	 * either MOSI or MISO is missing.  They can also be caused by