From patchwork Fri Aug 21 08:53:52 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 3033 Return-Path: X-Original-To: noreply@patchwork.local Delivered-To: noreply@patchwork.local Received: from sea.lore.kernel.org (sea.lore.kernel.org [172.234.253.10]) by mxe881.netcup.net (Postfix) with ESMTPS id 9B3081C05B2 for ; Fri, 21 Aug 2026 11:23:43 +0200 (CEST) Authentication-Results: mxe881; spf=pass (sender IP is 172.234.253.10) smtp.mailfrom=linux-sunxi+bounces-25286-noreply=patchwork.local@lists.linux.dev smtp.helo=sea.lore.kernel.org Received-SPF: pass (mxe881: domain of lists.linux.dev designates 172.234.253.10 as permitted sender) client-ip=172.234.253.10; envelope-from=linux-sunxi+bounces-25286-noreply=patchwork.local@lists.linux.dev; helo=sea.lore.kernel.org; Received: from smtp.subspace.kernel.org (conduit.subspace.kernel.org [100.90.174.1]) by sea.lore.kernel.org (Postfix) with ESMTP id 3BAF333845E5 for ; 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t=1787303109; c=relaxed/simple; bh=Wc0izlKtUAJ+rw36rxVafdeVDmdPA62+dk92XNLZ9mg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X7FBz8rOtJhnO2aQ5oU/qZBFpFhqgsTyyNreywmj4Vqg3FbKGxZ+qa58bsG3+0CdXyWMSijRPDv4j/bza2nx6TkoE2Ps47Cq1rH0VQPMxF9z6oLdy/G1Qcld7K82QNCDTgCMLpM6i7KKTIesKTtWrrt7MC2Y791zbRNrhuwQsts= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1CAB41F00A3E; Fri, 21 Aug 2026 09:04:44 +0000 (UTC) From: Geert Uytterhoeven To: Ryan Chen , Joel Stanley , Stephen Boyd , Brian Masney , Jerome Brunet , Andrew Jeffery , Billy Tsai , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Ray Jui , Scott Branden , Broadcom internal kernel review list , Taichi Sugaya , Takao Orito , Linus Walleij , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Sudeep Holla , Cristian Marussi , David Lechner , Abel Vesa , Peng Fan , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Paul Cercueil , Santosh Shilimkar , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Vladimir Zapolskiy , Heiko Stuebner , Krzysztof Kozlowski , Sylwester Nawrocki , Chanwoo Choi , Peter Griffin , Alim Akhtar , Dinh Nguyen , Viresh Kumar , Maxime Coquelin , Alexandre Torgue , =?utf-8?q?Emilio_L=C3=B3pe?= =?utf-8?q?z?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Prashant Gaikwad , Thierry Reding , Jonathan Hunter , Kunihiko Hayashi , Masami Hiramatsu , Ulf Hansson , Liviu Dudau , Lorenzo Pieralisi , Michal Simek , Matthias Brugger Cc: linux-clk@vger.kernel.org, linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, arm-scmi@vger.kernel.org, imx@lists.linux.dev, linux-mips@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, soc@lists.linux.dev, linux-stm32@st-md-mailman.stormreply.com, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-mediatek@lists.infradead.org, Geert Uytterhoeven Subject: [PATCH 42/45] clk: x86: Make sure clk_init_data is fully initialized Date: Fri, 21 Aug 2026 10:53:52 +0200 Message-ID: <2d1690a6966152450bda8e8b1e6f5fe2c1df1610.1787239813.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Rspamd-Server: rspamd-worker-8404 X-Spamd-Result: default: False [-1.66 / 15.00]; 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R_SPF_ALLOW(0.00)[+ip4:172.234.253.10:c]; TO_DN_SOME(0.00)[]; FORGED_SENDER_MAILLIST(0.00)[]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:63949, ipnet:172.234.224.0/19, country:SG]; RCVD_TLS_LAST(0.00)[]; TAGGED_FROM(0.00)[bounces-25286-noreply=patchwork.local,renesas]; MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[] X-Rspamd-Queue-Id: 9B3081C05B2 X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. Make sure all members are fully initialized, to avoid such bugs, and to prevent future breakage when converting drivers to a different method for specifying the parents. Signed-off-by: Geert Uytterhoeven --- Compile-tested only. --- drivers/clk/x86/clk-pmc-atom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/x86/clk-pmc-atom.c b/drivers/clk/x86/clk-pmc-atom.c index 08c83e0abc41d942..43dda274e329d19e 100644 --- a/drivers/clk/x86/clk-pmc-atom.c +++ b/drivers/clk/x86/clk-pmc-atom.c @@ -151,8 +151,8 @@ static struct clk_plt *plt_clk_register(struct platform_device *pdev, int id, const char **parent_names, int num_parents) { + struct clk_init_data init = {}; struct clk_plt *pclk; - struct clk_init_data init; int ret; pclk = devm_kzalloc(&pdev->dev, sizeof(*pclk), GFP_KERNEL);