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SubjectRe: [PATCH] net: dpaa2-mac: add missing of_node_put() in dpaa2_mac_get_node()
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Hi,

On 2022/4/30 10:29, Jakub Kicinski wrote:
> On Thu, 28 Apr 2022 18:01:27 +0800 Yang Yingliang wrote:
>> Add missing of_node_put() in error path in dpaa2_mac_get_node().
>>
>> Fixes: 5b1e38c0792c ("dpaa2-mac: bail if the dpmacs fwnode is not found")
>> Reported-by: Hulk Robot <hulkci@huawei.com>
>> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
>> ---
>> drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 5 ++++-
>> 1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
>> index c48811d3bcd5..a91446685526 100644
>> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
>> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
>> @@ -108,8 +108,11 @@ static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev,
>> return ERR_PTR(-EPROBE_DEFER);
>> }
>>
>> - if (!parent)
>> + if (!parent) {
>> + if (dpmacs)
>> + of_node_put(dpmacs);
> of_node_put() accepts NULL. I know this because unlike you I did
> at least the bare minimum looking at the surrounding code and saw
> other places not checking if it's NULL.
I missed that, I will send a v2 later.

Thanks,
Yang
> .

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