linux-kernel - [PATCH -next] iwlwifi: mvm: rfi: use kmemdup() to replace kzalloc + memcpy

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Message-Id: <1635317920-84725-1-git-send-email-cuibixuan@linux.alibaba.com>
Date:   Wed, 27 Oct 2021 14:58:40 +0800
From:   Bixuan Cui <cuibixuan@...ux.alibaba.com>
To:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     kvalo@...eaurora.org, luciano.coelho@...el.com,
        davem@...emloft.net, kuba@...nel.org, gregory.greenman@...el.com,
        weiyongjun1@...wei.com
Subject: [PATCH -next] iwlwifi: mvm: rfi: use kmemdup() to replace kzalloc + memcpy

Fix memdup.cocci warning:
./drivers/net/wireless/intel/iwlwifi/mvm/rfi.c:110:8-15: WARNING
opportunity for kmemdup

Signed-off-by: Bixuan Cui <cuibixuan@...ux.alibaba.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rfi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
index 4434421..1954b4c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rfi.c
@@ -107,12 +107,10 @@ struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm)
 	if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) != resp_size))
 		return ERR_PTR(-EIO);
 
-	resp = kzalloc(resp_size, GFP_KERNEL);
+	resp = kmemdup(cmd.resp_pkt->data, resp_size, GFP_KERNEL);
 	if (!resp)
 		return ERR_PTR(-ENOMEM);
 
-	memcpy(resp, cmd.resp_pkt->data, resp_size);
-
 	iwl_free_resp(&cmd);
 	return resp;
 }
-- 
1.8.3.1