From patchwork Wed Aug 21 01:24:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 821412 Received: from szxga06-in.huawei.com (szxga06-in.huawei.com [45.249.212.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8D18581E for ; Wed, 21 Aug 2024 01:16:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724202998; cv=none; b=rQCc5RiJojMIldoPEe4j1mIGEilxGbsYvDauc/PWq4uGl2WVyStyD6kLzUEJn37bU+8a+PKGeg2OA8MGC0bjFyg9+MG4ayNfkOQVTheeEY/SNcIjOMHnUInDysqJSwKXjN8fSChmiudxqRG4USsCO+jPjY9wrh4QpfiFppcsDJQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724202998; c=relaxed/simple; bh=oREfIt+sCrpt9MTlv9yWAfZlx5/VpKDbbWFU4+gJWJ8=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=J5g6RI/mt4CCwBR4eogf9f0lmOMOddKV+fLatRVI3KVxQJB/Icx53/NFUQZxLYNOP0TvK9Votlbzbpn4DJEuDu19+9sUsQWl8epcpROuJZkZHr3bRnk9De2YW7pHZzMDwZLJbgUvQYolo8kLXxJ804GgIDugHT0bWi2znrToRac= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4WpSzf0ygXz1xty9; Wed, 21 Aug 2024 09:14:38 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 789271A016C; Wed, 21 Aug 2024 09:16:32 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Wed, 21 Aug 2024 09:16:31 +0800 From: Li Zetao To: , CC: , Subject: [PATCH -next] Bluetooth: btrtl: Use kvmemdup to simplify the code Date: Wed, 21 Aug 2024 09:24:03 +0800 Message-ID: <20240821012403.1947764-1-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemd500012.china.huawei.com (7.221.188.25) Use kvmemdup instead of kvmalloc() + memcpy() to simplify the code. No functional change intended. Signed-off-by: Li Zetao --- drivers/bluetooth/btrtl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c index f2f37143c454..96754c8a4461 100644 --- a/drivers/bluetooth/btrtl.c +++ b/drivers/bluetooth/btrtl.c @@ -878,10 +878,8 @@ static int rtl_load_file(struct hci_dev *hdev, const char *name, u8 **buff) if (ret < 0) return ret; ret = fw->size; - *buff = kvmalloc(fw->size, GFP_KERNEL); - if (*buff) - memcpy(*buff, fw->data, ret); - else + *buff = kvmemdup(fw->data, fw->size, GFP_KERNEL); + if (!*buff) ret = -ENOMEM; release_firmware(fw);