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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> | 2019-11-24 08:23:33 +0100 |
| commit | 74c0a15d28d1320bb8bfc88213579e45963ab665 (patch) | |
| tree | 40cbf39a0e08e420ce474d10090cb124ccb164f5 | |
| parent | 28b6a09fbf23d2616af88b13b5654e89bda74777 (diff) | |
| download | linux-stable-74c0a15d28d1320bb8bfc88213579e45963ab665.tar.gz linux-stable-74c0a15d28d1320bb8bfc88213579e45963ab665.tar.bz2 linux-stable-74c0a15d28d1320bb8bfc88213579e45963ab665.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>
| -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 fdcf3076681b..185bbdce62b1 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; |