From dd8fd2cbc73f8650f651da71fc61a6e4f30c1566 Mon Sep 17 00:00:00 2001
From: Huibin Hong <huibin.hong@rock-chips.com>
Date: Wed, 10 Oct 2018 11:00:32 +0200
Subject: [PATCH] spi: rockchip: initialize dma_slave_config properly
Git-commit: dd8fd2cbc73f8650f651da71fc61a6e4f30c1566
Patch-mainline: v4.20-rc1
References: bsc#1051510
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/spi/spi-rockchip.c | 3 +++
1 file changed, 3 insertions(+)
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;
--
2.16.4