From: Tomasz Figa Date: Sun, 11 Aug 2013 00:33:28 +0000 (+0200) Subject: spi: s3c64xx: Zero dma_slave_config struct in prepare_dma() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b1a8e78d173081c303bea88e92a1e1423befca63;p=linux-beck.git 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 Signed-off-by: Mark Brown --- 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);