From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-178.mta1.migadu.com (out-178.mta1.migadu.com [95.215.58.178]) (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 4343E2DE1E4 for ; Mon, 11 Aug 2025 09:19:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754903972; cv=none; b=iAehZXq+zMjLQofFqLRpRiLiSN1MpvZ951ctGR+/KMeSK8k5Gwhda7G5mtQIlS1XCsf2dnL/Zrx2XHF/FRlNZ7OPu8AgdgyPNtCzAUHEHtzw32xFchnbVmjUe/nxbKleSoLt2MhWeL3qb/yCbFiO1XMkNbHt2qWgLo37PnVtJlU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754903972; c=relaxed/simple; bh=73ziJaTxTVfovg9zVWG0x3eTPSki4Bj74FK6rC2S2Ts=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=i0voGjVDgMGlfXYbvNeYT5t/G/RE2KlguL5+At0ERFaA0IJ7MffT6SSbGrI3IAwrmq9bHeCw8vLfSoOYa9tPhBKCzIMOm5dwIoJLiGexH4ExJcDlCftOyBKVN7J8gV0NNulpcfNz1KlBzadi9B1dLUi+nRHtYCjc+ib/DXYfw98= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=VnZCRHoD; arc=none smtp.client-ip=95.215.58.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="VnZCRHoD" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1754903968; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=NWPkSNsf50dMbQ5lIG9OwqZT1TDdouubduzQnRW9OKI=; b=VnZCRHoDdBDbeaNHxoAARW8uKwodVznLxUSTfqR7ZiecC9+z4LO/TGFDTr+e0XrlgS49q1 /Txnxb8P7jn3b+w+iI4X696GXsHgHxIz82G1r0o85/srtv+gFJoRL1COtDlLB+21UBGLJ/ nPVg35FoluhNxJ/ZOT2ZuGQMrYnxYdE= From: Thorsten Blum To: Marcel Holtmann , Luiz Augusto von Dentz Cc: Thorsten Blum , linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Bluetooth: btintel_pcie: Use strscpy() instead of strscpy_pad() Date: Mon, 11 Aug 2025 11:19:06 +0200 Message-ID: <20250811091906.4640-1-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT kzalloc() already zero-initializes the destination buffer 'data', making strscpy() sufficient for safely copying 'name'. The additional NUL-padding performed by strscpy_pad() is unnecessary. Add a new local variable to store the length of 'name' and reuse it instead of recalculating the same length. Signed-off-by: Thorsten Blum --- drivers/bluetooth/btintel_pcie.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c index 6e7bbbd35279..aad03f8a3e13 100644 --- a/drivers/bluetooth/btintel_pcie.c +++ b/drivers/bluetooth/btintel_pcie.c @@ -2236,6 +2236,7 @@ btintel_pcie_get_recovery(struct pci_dev *pdev, struct device *dev) { struct btintel_pcie_dev_recovery *tmp, *data = NULL; const char *name = pci_name(pdev); + const size_t name_len = strlen(name) + 1; struct hci_dev *hdev = to_hci_dev(dev); spin_lock(&btintel_pcie_recovery_lock); @@ -2252,11 +2253,11 @@ btintel_pcie_get_recovery(struct pci_dev *pdev, struct device *dev) return data; } - data = kzalloc(struct_size(data, name, strlen(name) + 1), GFP_ATOMIC); + data = kzalloc(struct_size(data, name, name_len), GFP_ATOMIC); if (!data) return NULL; - strscpy_pad(data->name, name, strlen(name) + 1); + strscpy(data->name, name, name_len); spin_lock(&btintel_pcie_recovery_lock); list_add_tail(&data->list, &btintel_pcie_recovery_list); spin_unlock(&btintel_pcie_recovery_lock); -- 2.50.1