linux-kernel - Re: [PATCH] mwifiex: uninit wakeup info when failed to add card

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Message-ID: <595DF921.2020108@rock-chips.com>
Date:   Thu, 06 Jul 2017 16:47:29 +0800
From:   jeffy <jeffy.chen@...k-chips.com>
To:     Brian Norris <briannorris@...omium.org>
CC:     linux-wireless@...r.kernel.org, akarwar@...vell.com,
        Xinming Hu <huxm@...vell.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Ganapathi Bhat <gbhat@...vell.com>,
        Amitkumar Karwar <amitkarwar@...il.com>,
        linux-kernel@...r.kernel.org,
        Nishant Sarmukadam <nishants@...vell.com>,
        netdev@...r.kernel.org
Subject: Re: [PATCH] mwifiex: uninit wakeup info when failed to add card

Hi brian,

On 07/06/2017 02:08 AM, Brian Norris wrote:
> On Mon, Jul 03, 2017 at 03:54:30PM +0800, Jeffy Chen wrote:
>> We inited wakeup info at the beginning of mwifiex_add_card, so we need
>> to uninit it in the error handling.
>>
>> It's much the same as what we did in:
>> 36908c4 mwifiex: uninit wakeup info when removing device
>
> Yeah, I noticed I hadn't covered all the error cases, so your change is
> part of the fix. But you're not covering the error paths when the
> firmware doesn't load correctly -- this happens asynchronously to
> mwifiex_add_card(). i.e., you need to fixup the error paths in
> _mwifiex_fw_dpc() too.
right, so we need to uninit it before every mwifiex_free_adapter :)
>
> Brian
>
>> Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
>>
>> ---
>>
>>   drivers/net/wireless/marvell/mwifiex/main.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
>> index f2600b8..17d2cbe 100644
>> --- a/drivers/net/wireless/marvell/mwifiex/main.c
>> +++ b/drivers/net/wireless/marvell/mwifiex/main.c
>> @@ -1655,6 +1655,8 @@ mwifiex_add_card(void *card, struct completion *fw_done,
>>   		mwifiex_shutdown_drv(adapter);
>>   	}
>>   err_kmalloc:
>> +	if (adapter->irq_wakeup >= 0)
>> +		device_init_wakeup(adapter->dev, false);
>>   	mwifiex_free_adapter(adapter);
>>
>>   err_init_sw:
>> --
>> 2.1.4
>>
>>
>
>
>