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From:   Emil Renner Berthing <kernel@esmil.dk>
To:     linux-rockchip@lists.infradead.org
Cc:     Emil Renner Berthing <kernel@esmil.dk>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Heiko Stuebner <heiko@sntech.de>,
        Mark Brown <broonie@kernel.org>,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        Brian Norris <briannorris@chromium.org>,
        Douglas Anderson <dianders@chromium.org>,
        Shunqian Zheng <zhengsq@rock-chips.com>,
        Nickey Yang <nickey.yang@rock-chips.com>,
        Klaus Goger <klaus.goger@theobroma-systems.com>,
        Randy Li <ayaka@soulik.info>, Chris Zhong <zyw@rock-chips.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
        Huibin Hong <huibin.hong@rock-chips.com>
Subject: [PATCH 1/7] spi: rockchip: initialize dma_slave_config properly
Date:   Wed, 10 Oct 2018 11:00:32 +0200
Message-Id: <20181010090038.20834-2-kernel@esmil.dk>
In-Reply-To: <20181010090038.20834-1-kernel@esmil.dk>
References: <20181010090038.20834-1-kernel@esmil.dk>
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From: Huibin Hong <huibin.hong@rock-chips.com>

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>
---
 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;
-- 
2.19.1