asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

spi: rockchip: initialize dma_slave_config properly

Browse source 
[ 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>
This commit is contained in:
Huibin Hong 2018-10-10 11:00:32 +02:00 committed by Greg Kroah-Hartman
parent f28abe5a36
commit 16ad1c4319
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/spi/spi-rockchip.c
View file

@ -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;