[PATCH] dmaengine: sf-pdma: Simplify the error handling path in 'sf_pdma_probe()'

From: Christophe JAILLET
Date: Fri May 01 2020 - 06:08:40 EST


There is no need to explicitly free memory that have been 'devm_kzalloc'ed.
Simplify the probe function accordingly.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/dma/sf-pdma/sf-pdma.c | 25 +++++++------------------
1 file changed, 7 insertions(+), 18 deletions(-)

diff --git a/drivers/dma/sf-pdma/sf-pdma.c b/drivers/dma/sf-pdma/sf-pdma.c
index 6d0bec947636..5c118c7e02bd 100644
--- a/drivers/dma/sf-pdma/sf-pdma.c
+++ b/drivers/dma/sf-pdma/sf-pdma.c
@@ -506,11 +506,11 @@ static int sf_pdma_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdma->membase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pdma->membase))
- goto ERR_MEMBASE;
+ return PTR_ERR(pdma->membase);

ret = sf_pdma_irq_init(pdev, pdma);
if (ret)
- goto ERR_INITIRQ;
+ return ret;

sf_pdma_setup_chans(pdma);

@@ -544,24 +544,13 @@ static int sf_pdma_probe(struct platform_device *pdev)
"Failed to set DMA mask. Fall back to default.\n");

ret = dma_async_device_register(&pdma->dma_dev);
- if (ret)
- goto ERR_REG_DMADEVICE;
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Can't register SiFive Platform DMA. (%d)\n", ret);
+ return ret;
+ }

return 0;
-
-ERR_MEMBASE:
- devm_kfree(&pdev->dev, pdma);
- return PTR_ERR(pdma->membase);
-
-ERR_INITIRQ:
- devm_kfree(&pdev->dev, pdma);
- return ret;
-
-ERR_REG_DMADEVICE:
- devm_kfree(&pdev->dev, pdma);
- dev_err(&pdev->dev,
- "Can't register SiFive Platform DMA. (%d)\n", ret);
- return ret;
}

static int sf_pdma_remove(struct platform_device *pdev)
--
2.25.1