Commit 16ad1c43 authored Oct 10, 2018 by Huibin Hong Committed by Greg Kroah-Hartman Nov 24, 2019

spi: rockchip: initialize dma_slave_config properly



[ Upstream commit dd8fd2cbc73f8650f651da71fc61a6e4f30c1566 ]

The rxconf and txconf structs are allocated on the
stack, so make sure we zero them before filling out
the relevant fields.

Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent f28abe5a

drivers/spi/spi-rockchip.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -445,6 +445,9 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
		struct dma_slave_config rxconf, txconf;
		struct dma_async_tx_descriptor rxdesc, txdesc;

		memset(&rxconf, 0, sizeof(rxconf));
		memset(&txconf, 0, sizeof(txconf));

		spin_lock_irqsave(&rs->lock, flags);
		rs->state &= ~RXBUSY;
		rs->state &= ~TXBUSY;