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Groups > linux.kernel > #1269529 > unrolled thread

[PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb"

Started bySF Markus Elfring <elfring@users.sourceforge.net>
First post2015-11-14 20:30 +0100
Last post2015-11-15 01:30 +0100
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  [PATCH] mac802154: Delete an unnecessary check before the function  call "kfree_skb" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-14 20:30 +0100
    Re: [PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb" Marcel Holtmann <marcel@holtmann.org> - 2015-11-15 01:30 +0100

#1269529 — [PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb"

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2015-11-14 20:30 +0100
Subject[PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb"
Message-ID<quOGl-86p-1@gated-at.bofh.it>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 14 Nov 2015 20:22:41 +0100

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>
---
 net/mac802154/rx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/mac802154/rx.c b/net/mac802154/rx.c
index 42e9672..446e130 100644
--- a/net/mac802154/rx.c
+++ b/net/mac802154/rx.c
@@ -217,8 +217,7 @@ __ieee802154_rx_handle_packet(struct ieee802154_local *local,
 		break;
 	}
 
-	if (skb)
-		kfree_skb(skb);
+	kfree_skb(skb);
 }
 
 static void
-- 
2.6.2

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#1269553 — Re: [PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb"

FromMarcel Holtmann <marcel@holtmann.org>
Date2015-11-15 01:30 +0100
SubjectRe: [PATCH] mac802154: Delete an unnecessary check before the function call "kfree_skb"
Message-ID<quTmG-2Dn-3@gated-at.bofh.it>
In reply to#1269529
Hi Markus,

> 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>
> ---
> net/mac802154/rx.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel

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