diff options
| author | Chunyan Zhang <zhang.lyra@gmail.com> | 2020-01-20 06:32:23 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-01-20 13:50:17 +0300 |
| commit | 1215c025e870ba001cbfc1bed91a05f415fc0a1c (patch) | |
| tree | 1a6ea5e8d8b7ad099254795019292638ee3932e9 /drivers/mmc | |
| parent | 6fac4a3cb0599b32a3437356ab03e7be10e1f036 (diff) | |
| download | linux-1215c025e870ba001cbfc1bed91a05f415fc0a1c.tar.xz | |
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 <lkp@intel.com>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200120033223.897-1-zhang.chunyan@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 5 |
1 files changed, 3 insertions, 2 deletions
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; |