diff options
Diffstat (limited to 'drivers/mtd/nand/raw/marvell_nand.c')
| -rw-r--r-- | drivers/mtd/nand/raw/marvell_nand.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c index 2455a581fd70..b9d1e96e3334 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -865,13 +865,19 @@ static int marvell_nfc_xfer_data_dma(struct marvell_nfc *nfc, marvell_nfc_enable_dma(nfc); /* Prepare the DMA transfer */ sg_init_one(&sg, nfc->dma_buf, dma_len); - dma_map_sg(nfc->dma_chan->device->dev, &sg, 1, direction); + ret = dma_map_sg(nfc->dma_chan->device->dev, &sg, 1, direction); + if (!ret) { + dev_err(nfc->dev, "Could not map DMA S/G list\n"); + return -ENXIO; + } + tx = dmaengine_prep_slave_sg(nfc->dma_chan, &sg, 1, direction == DMA_FROM_DEVICE ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT); if (!tx) { dev_err(nfc->dev, "Could not prepare DMA S/G list\n"); + dma_unmap_sg(nfc->dma_chan->device->dev, &sg, 1, direction); return -ENXIO; } @@ -2672,7 +2678,7 @@ static int marvell_nand_chip_init(struct device *dev, struct marvell_nfc *nfc, chip->controller = &nfc->controller; nand_set_flash_node(chip, np); - if (!of_property_read_bool(np, "marvell,nand-keep-config")) + if (of_property_read_bool(np, "marvell,nand-keep-config")) chip->options |= NAND_KEEP_TIMINGS; mtd = nand_to_mtd(chip); |