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| author | Tomasz Figa <tomasz.figa@gmail.com> | 2013-08-11 04:33:28 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-08-11 17:06:30 +0400 |
| commit | b1a8e78d173081c303bea88e92a1e1423befca63 (patch) | |
| tree | 6d4b0b1207a78c9525d18d56e7c80055f7dd738c | |
| parent | b998aca8ade221d592c8fc6b00687f2c4034d918 (diff) | |
| download | linux-b1a8e78d173081c303bea88e92a1e1423befca63.tar.xz | |
spi: s3c64xx: Zero dma_slave_config struct in prepare_dma()
Not all fields of dma_slave_config struct are being initialized by
prepare_dma() function, leaving those which are not in undefined state,
which can confuse DMA drivers using them.
This patch adds call to memset() to zero the struct before initializing
a subset of its fields.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index c9d0b1273be9..d67384b3c318 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -392,6 +392,8 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma, struct scatterlist sg; struct dma_async_tx_descriptor *desc; + memset(&config, 0, sizeof(config)); + if (dma->direction == DMA_DEV_TO_MEM) { sdd = container_of((void *)dma, struct s3c64xx_spi_driver_data, rx_dma); |