diff options
Diffstat (limited to 'drivers/mtd/nand/raw/renesas-nand-controller.c')
| -rw-r--r-- | drivers/mtd/nand/raw/renesas-nand-controller.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/mtd/nand/raw/renesas-nand-controller.c b/drivers/mtd/nand/raw/renesas-nand-controller.c index 1620e25a1147..201dd62b9990 100644 --- a/drivers/mtd/nand/raw/renesas-nand-controller.c +++ b/drivers/mtd/nand/raw/renesas-nand-controller.c @@ -210,7 +210,7 @@ struct rnand_chip { u32 tim_gen_seq1; u32 tim_gen_seq2; u32 tim_gen_seq3; - struct rnand_chip_sel sels[]; + struct rnand_chip_sel sels[] __counted_by(nsels); }; struct rnandc { @@ -426,6 +426,9 @@ static int rnandc_read_page_hw_ecc(struct nand_chip *chip, u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, rnandc->buf, mtd->writesize, DMA_FROM_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) + return -ENOMEM; + writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); @@ -606,6 +609,9 @@ static int rnandc_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf, /* Configure DMA */ dma_addr = dma_map_single(rnandc->dev, (void *)rnandc->buf, mtd->writesize, DMA_TO_DEVICE); + if (dma_mapping_error(rnandc->dev, dma_addr)) + return -ENOMEM; + writel(dma_addr, rnandc->regs + DMA_ADDR_LOW_REG); writel(mtd->writesize, rnandc->regs + DMA_CNT_REG); writel(DMA_TLVL_MAX, rnandc->regs + DMA_TLVL_REG); @@ -1297,23 +1303,17 @@ static void rnandc_chips_cleanup(struct rnandc *rnandc) static int rnandc_chips_init(struct rnandc *rnandc) { - struct device_node *np; int ret; - for_each_child_of_node(rnandc->dev->of_node, np) { + for_each_child_of_node_scoped(rnandc->dev->of_node, np) { ret = rnandc_chip_init(rnandc, np); if (ret) { - of_node_put(np); - goto cleanup_chips; + rnandc_chips_cleanup(rnandc); + return ret; } } return 0; - -cleanup_chips: - rnandc_chips_cleanup(rnandc); - - return ret; } static int rnandc_probe(struct platform_device *pdev) @@ -1336,7 +1336,10 @@ static int rnandc_probe(struct platform_device *pdev) if (IS_ERR(rnandc->regs)) return PTR_ERR(rnandc->regs); - devm_pm_runtime_enable(&pdev->dev); + ret = devm_pm_runtime_enable(&pdev->dev); + if (ret) + return ret; + ret = pm_runtime_resume_and_get(&pdev->dev); if (ret < 0) return ret; @@ -1386,15 +1389,13 @@ dis_runtime_pm: return ret; } -static int rnandc_remove(struct platform_device *pdev) +static void rnandc_remove(struct platform_device *pdev) { struct rnandc *rnandc = platform_get_drvdata(pdev); rnandc_chips_cleanup(rnandc); pm_runtime_put(&pdev->dev); - - return 0; } static const struct of_device_id rnandc_id_table[] = { |