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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 14:25:59 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 14:25:59 -0800 |
| commit | 1b79dff672ca09a5461cc1d46ad81c62137841c5 (patch) | |
| tree | 772a4224c78aa20862511ae5f7272f9311e4811c /drivers/mmc/host/mmc_spi.c | |
| parent | 83050a4e21979fe1821916fce2fca36255569ed3 (diff) | |
| parent | 18558cae0272f8fd9647e69d3fec1565a7949865 (diff) | |
| download | op-kernel-dev-1b79dff672ca09a5461cc1d46ad81c62137841c5.zip op-kernel-dev-1b79dff672ca09a5461cc1d46ad81c62137841c5.tar.gz | |
Merge 4.5-rc4 into char-misc-next
We want those 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 1c1b45e..3446097 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: |
