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

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

[Wang Qing]

Assign initial values ​​to local variables that may be returned

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
 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;
 
 	if (!of_device_is_available(node))
 		return ERR_PTR(-ENODEV);
-- 
2.7.4

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

[Greg Kroah-Hartman]

On Fri, Nov 06, 2020 at 11:15:55AM +0800, Wang Qing wrote:
> Assign initial values ​​to local variables that may be returned
> 
> Signed-off-by: Wang Qing <wangqing@vivo.com>

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.

> ---
>  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?

thanks,

greg k-h

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

[王擎]

>> Assign initial values to local variables that may be returned
>> 
>> Signed-off-by: Wang Qing <wangqing@vivo.com>
>
>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