linux-kernel - Re: [PATCH] megaraid_sas: fix missing { } braces

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Date:	Tue, 04 Aug 2015 08:47:12 +0200
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Colin King <colin.king@...onical.com>
Cc:	Kashyap Desai <kashyap.desai@...gotech.com>,
	Sumit Saxena <sumit.saxena@...gotech.com>,
	Uday Lingala <uday.lingala@...gotech.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>,
	megaraidlinux.pdl@...gotech.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] megaraid_sas: fix missing { } braces


Hi Colin,

Colin King <colin.king@...onical.com> writes:

> From: Colin Ian King <colin.king@...onical.com>
>
> Static analysis by smatch indicated that there was a curly
> braces issue:
>
> drivers/scsi/megaraid/megaraid_sas_base.c:6139
>   megasas_mgmt_fw_ioctl() warn: curly braces intended?
>
> Add braces in the appropriate place so that kbuf_arr[i] gets
> set to NULL only when we need to.  Also, remove whitespace
> between kbuff_arr and [].

I don't quite get where you removed that whitespace. Might it be a left
over from another version of the patch?

>
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/scsi/megaraid/megaraid_sas_base.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
> index 71b884d..8face78 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> @@ -6131,12 +6131,13 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
>  	}
>  
>  	for (i = 0; i < ioc->sge_count; i++) {
> -		if (kbuff_arr[i])
> +		if (kbuff_arr[i]) {
>  			dma_free_coherent(&instance->pdev->dev,
>  					  le32_to_cpu(kern_sge32[i].length),
>  					  kbuff_arr[i],
>  					  le32_to_cpu(kern_sge32[i].phys_addr));
>  			kbuff_arr[i] = NULL;
> +		}
>  	}
>  
>  	megasas_return_cmd(instance, cmd);

For the curly braces part:
Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>

While you're up to it, care to check drivers/scsi/bfa as well? There was
a patch somewhen in the past but it seems it wasn't applied. But if
found this bugzilla entry
https://bugzilla.kernel.org/show_bug.cgi?id=98261
for it.

Thanks,
Johannes

-- 
Johannes Thumshirn                                           Storage
jthumshirn@...e.de                                 +49 911 74053 689
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