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Re: [PATCH] ieee802154-atusb: Delete an unnecessary check before the function call "kfree_skb"

From Marcel Holtmann <marcel@holtmann.org>
Newsgroups linux.kernel
Subject Re: [PATCH] ieee802154-atusb: Delete an unnecessary check before the function call "kfree_skb"
Date 2015-11-17 15:10 +0100
Message-ID <qvP7l-64d-49@gated-at.bofh.it> (permalink)
References (14 earlier) <mSsDN-4wa-63@gated-at.bofh.it> <mSsDN-4wa-65@gated-at.bofh.it> <mSsDN-4wa-33@gated-at.bofh.it> <qvry3-7qr-33@gated-at.bofh.it> <qvskq-7Yr-31@gated-at.bofh.it>
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Hi Stefan,

>> The kfree_skb() function tests whether its argument is NULL and then
>> returns immediately. Thus the test around the call is not needed.
>> 
>> This issue was detected by using the Coccinelle software.
>> 
>> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
>> ---
>>  drivers/net/ieee802154/atusb.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>> 
>> diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
>> index 199a94a..b1cd865 100644
>> --- a/drivers/net/ieee802154/atusb.c
>> +++ b/drivers/net/ieee802154/atusb.c
>> @@ -310,8 +310,7 @@ static void atusb_free_urbs(struct atusb *atusb)
>>  		urb = usb_get_from_anchor(&atusb->idle_urbs);
>>  		if (!urb)
>>  			break;
>> -		if (urb->context)
>> -			kfree_skb(urb->context);
>> +		kfree_skb(urb->context);
>>  		usb_free_urb(urb);
>>  	}
>>  }
> 
> Acked-by: Stefan Schmidt <stefan@osg.samsung.com>

for some reason I am missing the original patch, can someone resend it please.

Regards

Marcel

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[PATCH] ieee802154-atusb: Delete an unnecessary check before the  function call "kfree_skb" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-16 14:00 +0100
  Re: [PATCH] ieee802154-atusb: Delete an unnecessary check before the  function call "kfree_skb" Stefan Schmidt <stefan@osg.samsung.com> - 2015-11-16 14:50 +0100
    Re: [PATCH] ieee802154-atusb: Delete an unnecessary check before the function call "kfree_skb" Marcel Holtmann <marcel@holtmann.org> - 2015-11-17 15:10 +0100
      Re: [PATCH] ieee802154-atusb: Delete an unnecessary check before the  function call "kfree_skb" Stefan Schmidt <stefan@osg.samsung.com> - 2015-11-17 17:20 +0100

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