From 1215c025e870ba001cbfc1bed91a05f415fc0a1c Mon Sep 17 00:00:00 2001 From: Chunyan Zhang Date: Mon, 20 Jan 2020 11:32:23 +0800 Subject: mmc: sdhci: fix an issue of mixing different types Fix an issue reported by sparse, since mixed types of parameters are used on calling dmaengine_prep_slave_sg(). Fixes: 36e1da441fec (mmc: sdhci: add support for using external DMA devices) Reported-by: kbuild test robot Signed-off-by: Chunyan Zhang Reviewed-by: Nathan Chancellor Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/20200120033223.897-1-zhang.chunyan@linaro.org Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/mmc') diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 30b5a624b50e..f9e0b5f2c692 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1201,6 +1201,7 @@ static int sdhci_external_dma_setup(struct sdhci_host *host, struct mmc_command *cmd) { int ret, i; + enum dma_transfer_direction dir; struct dma_async_tx_descriptor *desc; struct mmc_data *data = cmd->data; struct dma_chan *chan; @@ -1234,8 +1235,8 @@ static int sdhci_external_dma_setup(struct sdhci_host *host, if (sg_cnt <= 0) return -EINVAL; - desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len, - mmc_get_dma_dir(data), + dir = data->flags & MMC_DATA_WRITE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; + desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len, dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) return -EINVAL; -- cgit