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* [PATCH 2/2] jz4740-adc: fix resource reclaim in jz4740_adc_probe error path
@ 2010-07-29  8:28 Axel Lin
  2010-08-01 22:43 ` Samuel Ortiz
  0 siblings, 1 reply; 2+ messages in thread
From: Axel Lin @ 2010-07-29  8:28 UTC (permalink / raw)
  To: linux-kernel; +Cc: Samuel Ortiz, Lars-Peter Clausen

If mfd_add_devices() fail, we need to relese allocated resources.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
This patch is against linux-next.
 drivers/mfd/jz4740-adc.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index 2846d24..3ad492c 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -326,9 +326,15 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev)
 	writeb(0x00, adc->base + JZ_REG_ADC_ENABLE);
 	writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
 
-	return mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells,
+	ret = mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells,
 		ARRAY_SIZE(jz4740_adc_cells), mem_base, adc->irq_base);
+	if (ret < 0)
+		goto err_clk_put;
 
+	return 0;
+
+err_clk_put:
+	clk_put(adc->clk);
 err_iounmap:
 	platform_set_drvdata(pdev, NULL);
 	iounmap(adc->base);
-- 
1.5.4.3




^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH 2/2] jz4740-adc: fix resource reclaim in jz4740_adc_probe error path
  2010-07-29  8:28 [PATCH 2/2] jz4740-adc: fix resource reclaim in jz4740_adc_probe error path Axel Lin
@ 2010-08-01 22:43 ` Samuel Ortiz
  0 siblings, 0 replies; 2+ messages in thread
From: Samuel Ortiz @ 2010-08-01 22:43 UTC (permalink / raw)
  To: Axel Lin; +Cc: linux-kernel, Lars-Peter Clausen

Hi Axel,

On Thu, Jul 29, 2010 at 04:28:25PM +0800, Axel Lin wrote:
> If mfd_add_devices() fail, we need to relese allocated resources.
Patch applied, thanks a lot.

Cheers,
Samuel.


> Signed-off-by: Axel Lin <axel.lin@gmail.com>
> ---
> This patch is against linux-next.
>  drivers/mfd/jz4740-adc.c |    8 +++++++-
>  1 files changed, 7 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
> index 2846d24..3ad492c 100644
> --- a/drivers/mfd/jz4740-adc.c
> +++ b/drivers/mfd/jz4740-adc.c
> @@ -326,9 +326,15 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev)
>  	writeb(0x00, adc->base + JZ_REG_ADC_ENABLE);
>  	writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
>  
> -	return mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells,
> +	ret = mfd_add_devices(&pdev->dev, 0, jz4740_adc_cells,
>  		ARRAY_SIZE(jz4740_adc_cells), mem_base, adc->irq_base);
> +	if (ret < 0)
> +		goto err_clk_put;
>  
> +	return 0;
> +
> +err_clk_put:
> +	clk_put(adc->clk);
>  err_iounmap:
>  	platform_set_drvdata(pdev, NULL);
>  	iounmap(adc->base);
> -- 
> 1.5.4.3
> 
> 
> 

-- 
Intel Open Source Technology Centre
http://oss.intel.com/

^ permalink raw reply	[flat|nested] 2+ messages in thread

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