From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEED7C4321E for ; Mon, 5 Dec 2022 11:54:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230240AbiLELy3 (ORCPT ); Mon, 5 Dec 2022 06:54:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231598AbiLELxQ (ORCPT ); Mon, 5 Dec 2022 06:53:16 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0E14F00F for ; Mon, 5 Dec 2022 03:52:59 -0800 (PST) Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 3DBF8660036C; Mon, 5 Dec 2022 11:52:57 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1670241177; bh=S/XvQmPdf7xMwJPdBoXrFet0+92expZQ8DEbjSPs9BE=; h=Date:Subject:To:References:From:In-Reply-To:From; b=LQX47Qe0z7znEVhDoNSSdUh7pP3jMhJr8d35xJi2Xgs2Fabwnz5f9Z96mZxbEaM6T hPxZ2gsDs2bFxn1rloMJ7hWJ8qwjBWHe6KPKXIaewVeLSZYBw+sPG1f8OY8joB5KcR WKQQyA2K5Dn5Z+/H9SB9IGQjHRjDIvZYIkZyhgBZZeq5SKRfIoa8igNYvw/knHvpnr rwN83h15Xh+tcMkIjfJ92lX2kFRpVBotJc5ngmVkBCeWGvqMyRB5oFRfJUeWoBrEfm NPTE8LjIJW/fmtedA8lZce4N03YZgpcH2mzaAvPNegkM3HQu1NTkjyfjv+oab77wQJ kB3cipqSoiB+A== Message-ID: <378232f4-5c2e-ad56-c4ec-4d9f72f08755@collabora.com> Date: Mon, 5 Dec 2022 12:52:54 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0 Subject: Re: [PATCH] drm/mediatek: mtk_drm_crtc: Add checks for devm_kcalloc Content-Language: en-US To: ruanjinjie , chunkuang.hu@kernel.org, p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, seanpaul@chromium.org, ck.hu@mediatek.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20221205095115.2905090-1-ruanjinjie@huawei.com> From: AngeloGioacchino Del Regno In-Reply-To: <20221205095115.2905090-1-ruanjinjie@huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 05/12/22 10:51, ruanjinjie ha scritto: > As the devm_kcalloc may return NULL, the return value needs to be checked > to avoid NULL poineter dereference. > > Fixes: 31c5558dae05 ("drm/mediatek: Refactor plane init") > Signed-off-by: ruanjinjie Reviewed-by: AngeloGioacchino Del Regno