From patchwork Fri Jun 24 01:31:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiapeng Chong X-Patchwork-Id: 12893289 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2324BC43334 for ; Fri, 24 Jun 2022 01:33:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5567B10E2F0; Fri, 24 Jun 2022 01:33:23 +0000 (UTC) Received: from out30-44.freemail.mail.aliyun.com (out30-44.freemail.mail.aliyun.com [115.124.30.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id B7F4B10E69B for ; Fri, 24 Jun 2022 01:33:21 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R131e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=ay29a033018046049; MF=jiapeng.chong@linux.alibaba.com; NM=1; PH=DS; RN=7; SR=0; TI=SMTPD_---0VHEl8m6_1656034321; Received: from localhost(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0VHEl8m6_1656034321) by smtp.aliyun-inc.com; Fri, 24 Jun 2022 09:33:17 +0800 From: Jiapeng Chong To: paul@crapouillou.net Subject: [PATCH] drm/ingenic: Use resource_size function on resource object Date: Fri, 24 Jun 2022 09:31:59 +0800 Message-Id: <20220624013159.88646-1-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 2.20.1.7.g153144c MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jiapeng Chong , airlied@linux.ie, linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This was found by coccicheck: ./drivers/gpu/drm/ingenic/ingenic-drm-drv.c:1149:35-38: WARNING: Suspicious code. resource_size is maybe missing with res. Signed-off-by: Jiapeng Chong Reviewed-by: Sam Ravnborg --- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index 2c559885347a..5514b163999f 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -1146,7 +1146,7 @@ static int ingenic_drm_bind(struct device *dev, bool has_components) } regmap_config = ingenic_drm_regmap_config; - regmap_config.max_register = res->end - res->start; + regmap_config.max_register = resource_size(res); priv->map = devm_regmap_init_mmio(dev, base, ®map_config); if (IS_ERR(priv->map)) {