Re: [PATCH] arm: pm: call put_device instead of of_node_put in at91_pm_config_ws

From: zhong jiang
Date: Thu Aug 23 2018 - 09:22:43 EST


On 2018/8/23 20:19, Alexandre Belloni wrote:
> On 23/08/2018 19:44:38+0800, zhong jiang wrote:
>> Hi, alexandre
>>
>> Can you pick up the patch? Thanks
>>
> We are still in the merge window, this has to wait for v4.19-rc1.
Fine. Thank you for let me know .
>> Best wishes,
>> zhong jiang
>>
>> On 2018/8/16 18:26, zhong jiang wrote:
>>> of_find_device_by_node takes a reference to the struct device when it
>>> finds a match via get_device. but it fails to put_device in
>>> at91_pm_config_ws, for_each_matching_node_and_match will get and put
>>> the node properly, there is no need to call the of_put_node. Therefore,
>>> just call put_device instead of of_node_put in at91_pm_config_ws.
>>>
>>> Fixes: d7484f5c6b3b ("ARM: at91: pm: configure wakeup sources for ULP1 mode")
>>> Suggested-by: Claudiu Beznea <Claudiu.Beznea@xxxxxxxxxxxxx>
>>> Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
>>> ---
>>> arch/arm/mach-at91/pm.c | 6 +++---
>>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
>>> index 32fae4d..6574f00 100644
>>> --- a/arch/arm/mach-at91/pm.c
>>> +++ b/arch/arm/mach-at91/pm.c
>>> @@ -143,15 +143,15 @@ static int at91_pm_config_ws(unsigned int pm_mode, bool set)
>>>
>>> /* Check if enabled on SHDWC. */
>>> if (wsi->shdwc_mr_bit && !(val & wsi->shdwc_mr_bit))
>>> - goto put_node;
>>> + goto put_device;
>>>
>>> mode |= wsi->pmc_fsmr_bit;
>>> if (wsi->set_polarity)
>>> polarity |= wsi->pmc_fsmr_bit;
>>> }
>>>
>>> -put_node:
>>> - of_node_put(np);
>>> +put_device:
>>> + put_device(&pdev->dev);
>>> }
>>>
>>> if (mode) {
>>