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([2404:f801:8028:3:40af:bf67:9423:25ae]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-139d8f55b04sm8806333c88.4.2026.06.25.06.31.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jun 2026 06:31:43 -0700 (PDT) From: Subasri S To: Pablo Neira Ayuso , Florian Westphal , Phil Sutter , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Cc: netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Subasri S Subject: [PATCH nf-next] netfilter: remove redundant null check before kvfree() Date: Thu, 25 Jun 2026 19:01:24 +0530 Message-ID: <20260625133124.970238-1-subasris1210@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit kvfree() internally performs NULL check on the pointer handed to it and takes no action if it indeed is NULL. Hence there is no need for a pre-check of the memory pointer before handing it to kvfree(). Issue reported by ifnullfree.cocci Coccinelle semantic patch script. Signed-off-by: Subasri S --- net/netfilter/nft_set_rbtree.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c index 018bbb6df4ce..efc25e788a1c 100644 --- a/net/netfilter/nft_set_rbtree.c +++ b/net/netfilter/nft_set_rbtree.c @@ -544,8 +544,7 @@ static int nft_array_intervals_alloc(struct nft_array *array, u32 max_intervals) if (!intervals) return -ENOMEM; - if (array->intervals) - kvfree(array->intervals); + kvfree(array->intervals); array->intervals = intervals; array->max_intervals = max_intervals; -- 2.43.0