Re:Re: [PATCH] usb: Assign NULL ​​to phy that may be returned

From: 王擎
Date: Fri Nov 06 2020 - 02:49:22 EST


>> Assign initial values to local variables that may be returned
>>
>> Signed-off-by: Wang Qing <wangqing@xxxxxxxx>
>
>Your subject, and body of text, seem to have 2 "odd" characters in it,
>please fix up.
>
>Also, your subject and changelog body here are identical, please be much
>more verbose in the body explaining why you are doing something, not
>just what you are doing.
>
>And your subject line should also match other patches for this file, and
>have "usb: phy: ..." in the beginning.
Yeah, I got it.
>
>> ---
>> drivers/usb/phy/phy.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
>> index b47285f..de21967
>> --- a/drivers/usb/phy/phy.c
>> +++ b/drivers/usb/phy/phy.c
>> @@ -59,7 +59,7 @@ static struct usb_phy *__usb_find_phy(struct list_head *list,
>>
>> static struct usb_phy *__of_usb_find_phy(struct device_node *node)
>> {
>> - struct usb_phy *phy;
>> + struct usb_phy *phy = NULL;
>
>Why isn't the compiler complaining about this today? Are you sure this
>is needed?
Sorry, I didn't look at it carefully, because __usb_find_phy has an initial value,
and I was affected.. You don't need to modify it, In fact.

thanks,

Wang Qing
>
>thanks,
>
>greg k-h