From nobody Thu Sep 11 16:47:18 2025 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 42E2FC001DB for ; Fri, 4 Aug 2023 11:00:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229718AbjHDLAO (ORCPT ); Fri, 4 Aug 2023 07:00:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229582AbjHDK7f (ORCPT ); Fri, 4 Aug 2023 06:59:35 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFCB6273A for ; Fri, 4 Aug 2023 03:58:13 -0700 (PDT) Received: from [127.0.1.1] (91-154-35-171.elisa-laajakaista.fi [91.154.35.171]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 98367188E; Fri, 4 Aug 2023 12:56:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1691146611; bh=W3BdCub5uZqFZ3mcZrRZT/MkOLhq4JHeGg/aXz3nw1I=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kvA6fMuoRo1j5nIIY4k+dISbOKqRumEyxFPcz+9nvbehNM1KM9SImM79Ig82Hq3AX 5sAKvt/hhBS122FqZB0HFLI47vguOEqY/Tek6K4QzAefzo7dB8tnFeIfdnnPQFKeO+ UJuMHEubt+uRaeUixNSMOsFBmvDuokOJu51zPVC8= From: Tomi Valkeinen Date: Fri, 04 Aug 2023 13:57:40 +0300 Subject: [PATCH 2/2] drm/framebuffer: Fix use of uninitialized variable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230804-uninit-fixes-v1-2-a60772c04db5@ideasonboard.com> References: <20230804-uninit-fixes-v1-0-a60772c04db5@ideasonboard.com> In-Reply-To: <20230804-uninit-fixes-v1-0-a60772c04db5@ideasonboard.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Laurent Pinchart , Francesco Dolcini Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Tomi Valkeinen X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=957; i=tomi.valkeinen@ideasonboard.com; h=from:subject:message-id; bh=W3BdCub5uZqFZ3mcZrRZT/MkOLhq4JHeGg/aXz3nw1I=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBkzNmxZWV22iZzrPJkJW6W5BD4iTDw0P5YJjzUk BzzN5se7uKJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCZMzZsQAKCRD6PaqMvJYe 9acCD/9Jqv5JDU5Yg3BWu883KU+wA96GtjuEePd9EJOMd/im3JTG77qMTGlkUQ07EIQ7l5/QzRw CQcyhXk3LYB5ocA3wWtTX0O5hvsT/k0/zVtur/wANTbncq7Ae+OoFBxYbdWwTbCkpYNW8lwlOc6 fv/9fgZ83E/NLAbdFTqyb1ER/x8si7NUKh7cHcm8Zjq2xPW01wKmsBLfl51XoYMOi+KaSvPajfg 74v1/shwTaOg/WapJlgBWgTISdJ9LnK2fFT/pNp16Y8KMBj1a40Tw+381Ne5zu21+IjNrOcfTF1 6LaNTK7kb5Bxugj8S2En42mUkACDUU6Gj0GrWEVqYD/ri6Q2GppTM48vjfKLhkKECkUJhKiHEby o8LbFZNMJG3auZHreOYO4pr/0xxwOXJ3GzvKRaykPD31h46dw7BLvHqU+J0If3LHYP51Hp1i228 J8knCsXJJu8XV+JBy9pzgpu9Dwj/67cbQY86+C/JZ4syDmqb1klTgbq+hDjR7kMfnytX9d0yl+S J472vWkDKGUksF06JVFHAq4QOnAlmv5JtuCqUZY0BVwkMoVXXPzlyVA/LlTeozb4lwih6EunGcb LVvmb/O/t2T6n7OqmQ/IcuUtxODVYWuatZeszSYFt/Td7DDXin5BFDfXKNF/EHzWhB0zkqWAEuE RvIi4bOlH9kqyUg== X-Developer-Key: i=tomi.valkeinen@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org smatch reports: drivers/gpu/drm/drm_framebuffer.c:654 drm_mode_getfb2_ioctl() error: uninit= ialized symbol 'ret'. 'ret' is possibly not set when there are no errors, causing the error above. I can't say if that ever happens in real-life, but in any case I think it is good to initialize 'ret' to 0. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/drm_framebuffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_frameb= uffer.c index aff3746dedfb..1955eaeba0ab 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -570,7 +570,7 @@ int drm_mode_getfb2_ioctl(struct drm_device *dev, struct drm_mode_fb_cmd2 *r =3D data; struct drm_framebuffer *fb; unsigned int i; - int ret; + int ret =3D 0; =20 if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; --=20 2.34.1