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| author | Huibin Hong <huibin.hong@rock-chips.com> | 2018-10-10 11:00:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-25 15:54:51 +0100 |
| commit | 736d201a590941a95aefb037238f867ca7edbb20 (patch) | |
| tree | 6c44bec64936b239750f6edee5b19e7cf70666ad /drivers/spi | |
| parent | 344823879808142fe0fc9900f6e7ee77da7841e5 (diff) | |
| download | linux-stable-736d201a590941a95aefb037238f867ca7edbb20.tar.gz linux-stable-736d201a590941a95aefb037238f867ca7edbb20.tar.bz2 linux-stable-736d201a590941a95aefb037238f867ca7edbb20.zip | |
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.c | 3 |
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; |