[PATCH RESEND v4 6/6] dmaengine: dw: Unify ret-val local variables naming

Serge Semin
2024-08-02T07:51:33Z

Currently there are two names utilized in the driver to keep the functions
call status: ret and err. For the sake of unification convert to using the
first version only.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>

---

Changelog v2:
- New patch created on v2 review stage. (Andy)
---
drivers/dma/dw/core.c | 20 ++++++++++----------
drivers/dma/dw/platform.c | 20 ++++++++++----------
2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index c696d79b911a..602f1208ab9b 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -1149,7 +1149,7 @@ int do_dma_probe(struct dw_dma_chip *chip)
bool autocfg = false;
unsigned int dw_params;
unsigned int i;
- int err;
+ int ret;

dw->pdata = devm_kzalloc(chip->dev, sizeof(*dw->pdata), GFP_KERNEL);
if (!dw->pdata)
@@ -1165,7 +1165,7 @@ int do_dma_probe(struct dw_dma_chip *chip)

autocfg = dw_params >> DW_PARAMS_EN & 1;
if (!autocfg) {
- err = -EINVAL;
+ ret = -EINVAL;
goto err_pdata;
}

@@ -1185,7 +1185,7 @@ int do_dma_probe(struct dw_dma_chip *chip)
pdata->chan_allocation_order = CHAN_ALLOCATION_ASCENDING;
pdata->chan_priority = CHAN_PRIORITY_ASCENDING;
} else if (chip->pdata->nr_channels > DW_DMA_MAX_NR_CHANNELS) {
- err = -EINVAL;
+ ret = -EINVAL;
goto err_pdata;
} else {
memcpy(dw->pdata, chip->pdata, sizeof(*dw->pdata));
@@ -1197,7 +1197,7 @@ int do_dma_probe(struct dw_dma_chip *chip)
dw->chan = devm_kcalloc(chip->dev, pdata->nr_channels, sizeof(*dw->chan),
GFP_KERNEL);
if (!dw->chan) {
- err = -ENOMEM;
+ ret = -ENOMEM;
goto err_pdata;
}

@@ -1215,15 +1215,15 @@ int do_dma_probe(struct dw_dma_chip *chip)
sizeof(struct dw_desc), 4, 0);
if (!dw->desc_pool) {
dev_err(chip->dev, "No memory for descriptors dma pool\n");
- err = -ENOMEM;
+ ret = -ENOMEM;
goto err_pdata;
}

tasklet_setup(&dw->tasklet, dw_dma_tasklet);

- err = request_irq(chip->irq, dw_dma_interrupt, IRQF_SHARED,
+ ret = request_irq(chip->irq, dw_dma_interrupt, IRQF_SHARED,
dw->name, dw);
- if (err)
+ if (ret)
goto err_pdata;

INIT_LIST_HEAD(&dw->dma.channels);
@@ -1335,8 +1335,8 @@ int do_dma_probe(struct dw_dma_chip *chip)
*/
dma_set_max_seg_size(dw->dma.dev, dw->chan[0].block_size);

- err = dma_async_device_register(&dw->dma);
- if (err)
+ ret = dma_async_device_register(&dw->dma);
+ if (ret)
goto err_dma_register;

dev_info(chip->dev, "DesignWare DMA Controller, %d channels\n",
@@ -1350,7 +1350,7 @@ int do_dma_probe(struct dw_dma_chip *chip)
free_irq(chip->irq, dw);
err_pdata:
pm_runtime_put_sync_suspend(chip->dev);
- return err;
+ return ret;
}

int do_dma_remove(struct dw_dma_chip *chip)
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 7d9d4c951724..47c58ad468cb 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -29,7 +29,7 @@ static int dw_probe(struct platform_device *pdev)
struct dw_dma_chip_pdata *data;
struct dw_dma_chip *chip;
struct device *dev = &pdev->dev;
- int err;
+ int ret;

match = device_get_match_data(dev);
if (!match)
@@ -51,9 +51,9 @@ static int dw_probe(struct platform_device *pdev)
if (IS_ERR(chip->regs))
return PTR_ERR(chip->regs);

- err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err)
- return err;
+ ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;

if (!data->pdata)
data->pdata = dev_get_platdata(dev);
@@ -69,14 +69,14 @@ static int dw_probe(struct platform_device *pdev)
chip->clk = devm_clk_get_optional(chip->dev, "hclk");
if (IS_ERR(chip->clk))
return PTR_ERR(chip->clk);
- err = clk_prepare_enable(chip->clk);
- if (err)
- return err;
+ ret = clk_prepare_enable(chip->clk);
+ if (ret)
+ return ret;

pm_runtime_enable(&pdev->dev);

- err = data->probe(chip);
- if (err)
+ ret = data->probe(chip);
+ if (ret)
goto err_dw_dma_probe;

platform_set_drvdata(pdev, data);
@@ -90,7 +90,7 @@ static int dw_probe(struct platform_device *pdev)
err_dw_dma_probe:
pm_runtime_disable(&pdev->dev);
clk_disable_unprepare(chip->clk);
- return err;
+ return ret;
}

static void dw_remove(struct platform_device *pdev)
--
2.43.0