From patchwork Thu Jun 6 16:50:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13688811 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 4FB53197A8E; Thu, 6 Jun 2024 16:50:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717692611; cv=none; b=RqIjey/F/6HdjTiJBTfyX3aL81Cc6QSjoRh1Kl9L81p2wM7hnh84GQuCbt28LItXkbvL6y5U0DLgcnf2y9/yGgoLqUBzX+rUp0c7rFEZPEXvf50tVPGS++pobnM2T8LI9ya5TxsM0iD+n9oU2wb3JHHKX6H4MOBLE5PFZDdPsaQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717692611; c=relaxed/simple; bh=tlaOqTIhOPntNJcdksoYStm3FquF+/nT90DemPfbmLU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dwAbPpkkpAQL8lqJSUt09zQfSuMJVWTUOaRQgNAr5tuW5XePmxKJyT4V+pxuZQdrwzy4V1Rno68VuBM+rb8P7KFzG7eBZof9oQ4/955JkXdeGOn++5xsnSyPnYWobDn1G3Xv2HH+dwb0TWSOBq0LVWwznj+4X3o6rYHScXnZ4ok= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Jitzm3Gs; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Jitzm3Gs" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717692610; x=1749228610; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=tlaOqTIhOPntNJcdksoYStm3FquF+/nT90DemPfbmLU=; b=Jitzm3GsCl6kzm+nW9yLofnKXeVevHjqh/d6nANLexGmI4bJ2+tU9ih8 HqnyfZclH2EMEuxK4Lfe3NaeICYhHgjy0UGF82oktEw751uHaEGPyINNX 5rspd2i2poAzT1ZAK74f6HlVAH1bXd1/IoPwTwsj/iuD4zM4NyLZHRKlv K4IZ2cKSw/xmlZ4UUTZ+kfkwgQEb31V28P56Bo+Q6o01LX70Swh0hvK+C 65csc8i821tlIYtyx3XybD4QaAGLRVJzYM4i0Mxb5HGCc7GALiuucL+UD gi4Nj6JuMoJDf5gAV2J3yw0Z8i/4yajLS0XB8YI/ke9lKCyzavdtSF10z Q==; X-CSE-ConnectionGUID: IASmFAx7TReJM+cnQmEFsg== X-CSE-MsgGUID: 9aFuuGaVQcKBR/G7/LIWlg== X-IronPort-AV: E=McAfee;i="6600,9927,11095"; a="25009192" X-IronPort-AV: E=Sophos;i="6.08,219,1712646000"; d="scan'208";a="25009192" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2024 09:50:09 -0700 X-CSE-ConnectionGUID: DdXhLnLjRm6K4xL53TTMzg== X-CSE-MsgGUID: e8p8eG7JTEmDCX/ObJeFsg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,219,1712646000"; d="scan'208";a="38591644" Received: from black.fi.intel.com ([10.237.72.28]) by orviesa008.jf.intel.com with ESMTP; 06 Jun 2024 09:50:08 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 1AF702A4; Thu, 06 Jun 2024 19:50:06 +0300 (EEST) From: Andy Shevchenko To: linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , "Rafael J. Wysocki" , Len Brown , Andy Shevchenko Subject: [PATCH v1 1/1] ACPI/IORT: Switch to use kmemdup_array() Date: Thu, 6 Jun 2024 19:50:05 +0300 Message-ID: <20240606165005.3031490-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1336.g36b5255a03ac Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Let the kememdup_array() take care about multiplication and possible overflows. Signed-off-by: Andy Shevchenko Acked-by: Hanjun Guo --- drivers/acpi/arm64/iort.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index c0b1c2c19444..e596dff20f1e 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -822,7 +822,7 @@ static struct iommu_iort_rmr_data *iort_rmr_alloc( return NULL; /* Create a copy of SIDs array to associate with this rmr_data */ - sids_copy = kmemdup(sids, num_sids * sizeof(*sids), GFP_KERNEL); + sids_copy = kmemdup_array(sids, num_sids, sizeof(*sids), GFP_KERNEL); if (!sids_copy) { kfree(rmr_data); return NULL;