linux-kernel - Re: [PATCH v3 2/5] arcmsr: fixes not release allocated resource

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Message-ID: <1448452806.2877.75.camel@suse.de>
Date:	Wed, 25 Nov 2015 13:00:06 +0100
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Ching Huang <ching2048@...ca.com.tw>
Cc:	hch@....de, hch@...radead.org, thenzl@...hat.com,
	jbottomley@...allels.com, dan.carpenter@...cle.com,
	agordeev@...hat.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, hare@...e.de
Subject: Re: [PATCH v3 2/5] arcmsr: fixes not release allocated resource

On Wed, 2015-11-25 at 19:41 +0800, Ching Huang wrote:
> From: Ching Huang <ching2048@...ca.com.tw>
> 
> Releasing allocated resource if get configuration data failed.
> 
> Signed-of-by: Ching Huang <ching2048@...ca.com.tw>
> 
> ---
> 
> diff -uprN a/drivers/scsi/arcmsr/arcmsr_hba.c
> b/drivers/scsi/arcmsr/arcmsr_hba.c
> --- a/drivers/scsi/arcmsr/arcmsr_hba.c	2015-11-24 11:35:26.000000000
> +0800
> +++ b/drivers/scsi/arcmsr/arcmsr_hba.c	2015-11-25 19:04:44.590970000
> +0800
> @@ -2664,7 +2664,7 @@ static bool arcmsr_hbaB_get_config(struc
>  	if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
>  		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
>  			miscellaneous data' timeout \n", acb->host-
> >host_no);
> -		return false;
> +		goto err_free_dma;
>  	}
>  	count = 8;
>  	while (count){
> @@ -2707,6 +2707,10 @@ static bool arcmsr_hbaB_get_config(struc
>  	acb->firm_cfg_version = readl(&reg-
> >message_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
>  	/*firm_ide_channels,4,16-19*/
>  	return true;
> +err_free_dma:
> +	dma_free_coherent(&acb->pdev->dev, acb->roundup_ccbsize,
> +			acb->dma_coherent2, acb->dma_coherent_handle2);
> +	return false;
>  }
>  
>  static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
> 
> 

Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>
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