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authorHuibin Hong <huibin.hong@rock-chips.com>2018-10-10 11:00:32 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-25 15:54:51 +0100
commit736d201a590941a95aefb037238f867ca7edbb20 (patch)
tree6c44bec64936b239750f6edee5b19e7cf70666ad /drivers/spi
parent344823879808142fe0fc9900f6e7ee77da7841e5 (diff)
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>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-rockchip.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 035767c02072..f42ae9efb255 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -444,6 +444,9 @@ static void 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;