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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B3798CA6019 for ; Fri, 9 Oct 2026 09:41:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SHucz3qY6+BH4YMQ0K3equMWZeHDs8Rh369diC5si0E=; b=djAO/mb/6jLk59IF/b3A4jHgk6 Z7IbUIRoaXJqqBSSlAoLXVUCb8UPMVlDcAxYToH74ewaew6ax015F+CTvJ2sTviBnRdvdDEnvhXqb VJh42VtQ0W/Q63KpLLeo2MPN/Ri8RiU2qj8r3tSAkff7uX16ya25SnuLWVLG6YoGyrLBD8oeTsnLu oV2/cUJW3NuCp19+tMoIueRlSo+yLglCYmu5zmQNzugeFGIZYxzzKK6pa9LN5p/ULF/IPSH6QwjKi Fu4a3d7uw0xQm3k6neJ9tv6VYe2Rq6GCDf2t/8ISPW/g3OCehbAST8XfIIXxIAKOb0AdtCfMPrJzg 21gMrarQ==; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 09/10/2026 08:18, Haotian Zhang wrote: > xvcu_clk_hw_unregister_leaf() gets the mux with > clk_hw_get_parent(divider), which returns NULL when the divider has no > parent, and passes it to clk_hw_unregister_mux() without checking it. > The following check tests the wrong variable: divider has already been > verified to be non-NULL at this point, so "if (!divider) return;" is > dead code and a NULL mux is dereferenced, crashing in > clk_hw_unregister_mux(). > > Only unregister the mux when it is non-NULL, and always release the > divider. So you fired up your OpenClaw or whatever LLM tool and don't bother to slow down, right? Best regards, Krzysztof