diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 14:29:55 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 14:29:55 -0800 |
| commit | c21b04f9890ce35bfbb4f5ee1937017613f66017 (patch) | |
| tree | 0f15558258d2d67f8149d3378b0e6bb83f0d8a35 /drivers/mmc/host/mmc_spi.c | |
| parent | 28c09ec4b6b7a2f9f769966baf54eaf0d6fadf8c (diff) | |
| parent | 18558cae0272f8fd9647e69d3fec1565a7949865 (diff) | |
Merge 4.5-rc4 into driver-core-next
We want the fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc/host/mmc_spi.c')
| -rw-r--r-- | drivers/mmc/host/mmc_spi.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 1c1b45ef3faf..3446097a43c0 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -925,6 +925,10 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd, dma_addr = dma_map_page(dma_dev, sg_page(sg), 0, PAGE_SIZE, dir); + if (dma_mapping_error(dma_dev, dma_addr)) { + data->error = -EFAULT; + break; + } if (direction == DMA_TO_DEVICE) t->tx_dma = dma_addr + sg->offset; else @@ -1393,10 +1397,12 @@ static int mmc_spi_probe(struct spi_device *spi) host->dma_dev = dev; host->ones_dma = dma_map_single(dev, ones, MMC_SPI_BLOCKSIZE, DMA_TO_DEVICE); + if (dma_mapping_error(dev, host->ones_dma)) + goto fail_ones_dma; host->data_dma = dma_map_single(dev, host->data, sizeof(*host->data), DMA_BIDIRECTIONAL); - - /* REVISIT in theory those map operations can fail... */ + if (dma_mapping_error(dev, host->data_dma)) + goto fail_data_dma; dma_sync_single_for_cpu(host->dma_dev, host->data_dma, sizeof(*host->data), @@ -1462,6 +1468,11 @@ fail_glue_init: if (host->dma_dev) dma_unmap_single(host->dma_dev, host->data_dma, sizeof(*host->data), DMA_BIDIRECTIONAL); +fail_data_dma: + if (host->dma_dev) + dma_unmap_single(host->dma_dev, host->ones_dma, + MMC_SPI_BLOCKSIZE, DMA_TO_DEVICE); +fail_ones_dma: kfree(host->data); fail_nobuf1: |