linux-kernel - Re: [PATCH v1 4/8] soc/fsl/qbman: Use index when accessing device tree properties

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Message-ID: <DB6PR0402MB27278B23001A8965AE493CE3860F0@DB6PR0402MB2727.eurprd04.prod.outlook.com>
Date:   Mon, 13 May 2019 17:40:46 +0000
From:   Roy Pledge <roy.pledge@....com>
To:     "jocke@...inera.com" <joakim.tjernlund@...inera.com>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Leo Li <leoyang.li@....com>
CC:     Madalin-cristian Bucur <madalin.bucur@....com>,
        Laurentiu Tudor <laurentiu.tudor@....com>
Subject: Re: [PATCH v1 4/8] soc/fsl/qbman: Use index when accessing device
 tree properties

On 5/13/2019 12:40 PM, Joakim Tjernlund wrote:
> On Mon, 2019-05-13 at 16:09 +0000, Roy Pledge wrote:
>> The index value should be passed to the of_parse_phandle()
>> function to ensure the correct property is read.
> Is this a bug fix? Maybe for stable too?
>
>  Jocke
Yes this could go to stable.  I will include stable@...r.kernel.org when
I send the next version.
>
>> Signed-off-by: Roy Pledge <roy.pledge@....com>
>> ---
>>  drivers/soc/fsl/qbman/dpaa_sys.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/fsl/qbman/dpaa_sys.c b/drivers/soc/fsl/qbman/dpaa_sys.c
>> index 3e0a7f3..0b901a8 100644
>> --- a/drivers/soc/fsl/qbman/dpaa_sys.c
>> +++ b/drivers/soc/fsl/qbman/dpaa_sys.c
>> @@ -49,7 +49,7 @@ int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr,
>>                         idx, ret);
>>                 return -ENODEV;
>>         }
>> -       mem_node = of_parse_phandle(dev->of_node, "memory-region", 0);
>> +       mem_node = of_parse_phandle(dev->of_node, "memory-region", idx);
>>         if (mem_node) {
>>                 ret = of_property_read_u64(mem_node, "size", &size64);
>>                 if (ret) {
>> --
>> 2.7.4
>>
>