Return -ENOTSUPP if bitlen cannot be handled by the controller during xfer.
This fixes board reset when sspi command is hit with no arguments where bitlen is passed as 0. Signed-off-by: Lad Prabhakar <[email protected]> Reviewed-by: Biju Das <[email protected]> --- drivers/spi/renesas_rpc_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c index 9d9e767d87..c2ff5b157c 100644 --- a/drivers/spi/renesas_rpc_spi.c +++ b/drivers/spi/renesas_rpc_spi.c @@ -252,7 +252,7 @@ static int rpc_spi_xfer(struct udevice *dev, unsigned int bitlen, if (!priv->cmdstarted) { if (!wlen || rlen) - BUG(); + return -ENOTSUPP; memcpy(priv->cmdcopy, dout, wlen); priv->cmdlen = wlen; -- 2.17.1
