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authorHuibin Hong <huibin.hong@rock-chips.com>2018-10-10 11:00:32 +0200
committerMark Brown <broonie@kernel.org>2018-10-11 15:11:45 +0100
commitdd8fd2cbc73f8650f651da71fc61a6e4f30c1566 (patch)
treee97dcb2cf99818fe675d6ac0d7f1e22a32660a97 /drivers/spi/spi-rockchip.c
parent940ec770c295682993d1cccce3081fd7c74fece8 (diff)
downloadlinux-dd8fd2cbc73f8650f651da71fc61a6e4f30c1566.tar.bz2
spi: rockchip: initialize dma_slave_config properly
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>
Diffstat (limited to 'drivers/spi/spi-rockchip.c')
-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 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;