| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 200/209] spi: rockchip: initialize dma_slave_config properly | Date | Tue, 12 Nov 2019 20:50:16 -0500 |
| |
From: Huibin Hong <huibin.hong@rock-chips.com>
[ 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> --- drivers/spi/spi-rockchip.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index fdcf3076681b5..185bbdce62b14 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -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; -- 2.20.1
|