[snip]
> +static int brcmnand_dma_trans(struct brcmnand_host *host, u64 addr, u32 *buf,
> + u32 len, u8 dma_cmd)
> +{
> + struct brcmnand_controller *ctrl = host->ctrl;
> + dma_addr_t buf_pa;
> + int dir = dma_cmd == CMD_PAGE_READ ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
> +
> + buf_pa = dma_map_single(ctrl->dev, buf, len, dir);
We are missing a dma_mapping_error() check here.
--
Florian
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