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 6080FC43602 for ; Tue, 7 Jul 2026 07:49:33 +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: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZgeIwqrRwEWwVAYs7V5QSF1WwroM+m3Iz8O4TkBApNo=; b=iWcfg6KLfMGCW/SSVTuxGNPANs k3fs1vJMD8tQrECcbrBbe1/EgfwPd5YEmswhTZiqYha+hPJLRVru+FNc/7N7TI4HWCLE/RQzJmuiZ 4HgPwuJIWnLo4k6ZOI89kWGEmPhkgxFPT2D1PrWqJUarUqwj3hdCfX2xCd1b6kPGk9K8eZwslCIo7 TodUi3L2N8Lh5wH+ogpND0L2Xww3KLFDL9kXvmOe1PGFX72rV/5Bpkf0eqDsbiLi682Q5VF7w1ASS +Ce5ErUXUnQNfWvH4NVtpVx3F/fc6EabwHoW83plZrKKlDnc/Ij3+V+ZeSevJ36PVFjI6aTdR8KJr M0D97FqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wh0YW-0000000EMLE-0f0v; Tue, 07 Jul 2026 07:49:24 +0000 Received: from mail-pj1-x1031.google.com ([2607:f8b0:4864:20::1031]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wh0YR-0000000EMHx-24yC for linux-arm-kernel@lists.infradead.org; Tue, 07 Jul 2026 07:49:21 +0000 Received: by mail-pj1-x1031.google.com with SMTP id 98e67ed59e1d1-383adaa461fso2050152a91.3 for ; Tue, 07 Jul 2026 00:49:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1783410559; x=1784015359; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=ZgeIwqrRwEWwVAYs7V5QSF1WwroM+m3Iz8O4TkBApNo=; b=SCcv5Sx2g7kCriomE8GqAq4MYbgHQj2zPnM54tjbzUgJSgXkipBzZisfKHPJqoA6Se lQqfDLbXbs746QIvzx7OrFbx85X15zxVcK9iW1LO+NNTnDIQtPcMpdfAGM8Z4SzG7Tdn YAdwohFZl8faSh2ZXQylXOIwpIuM50EoQqFNMexhAzeuUMJGsfXngVwv0xUAmA3sc/N/ 7FOup8SRfkYcTQdGZ+H6rmv39h0TYfhb57abmEWaDiuAlf7X7NyDUGXHKW9ges+9v5Rj ZclYI3NsLAkhjC46rSx2zvokqjxi0wDKg7JZ118AFvlSohVSzBkv5gkBgDJWwZHpct99 RmVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783410559; x=1784015359; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=ZgeIwqrRwEWwVAYs7V5QSF1WwroM+m3Iz8O4TkBApNo=; b=GbEAYuYWi9/rt9u4UC4edob9ipSyQj/jxGGVOhKsPYtVqO95J5sowwt1KqwlHzBokC eJF4kyrkgB/efCGrOM6ZevNObGBIv3IgWiwGEC5KkMOKNcX9O2PR4SoF8V8/ox42DK77 TmlaBFoUN38sfEWzH8IVsuuH8iyA99rTvL9LN89J1ViB7RDzPk9vtZABncDcS2VH98aq UwbniKcJRopuFn943mZGQV7yW7bdFYi28fIcKaAc1fhAVzdJQIMgk/EqkIQOOC4OEbSA TBLuXm7ajWKjq9JkKzZNXqnMSDW4sbpi8UYOTGiFM/0IU4ihKHklIiS4s6YKnhEEW8oX XACQ== X-Forwarded-Encrypted: i=1; AHgh+Roc0kQHyniB+QViim2jfcdH4ZqzhkvacLsWajZT80QOjTINmP9QXGvo741tcTw2PJycrK6PTKcA40pj67YB/Jz3@lists.infradead.org X-Gm-Message-State: AOJu0YxkXsvK2rTWi+nfXQqToSl0Vh6jqOfCWDm9k3ZyJprEJYWKoTt4 8s7A4anRTpBsZgYEj5gQ0R8FMLiMkTbyYPGEdfBNIR0O4fk/1pECT8tM X-Gm-Gg: AfdE7ckXOIAzbkKienh2Ne2JNMWkpiiDfjEKUB487On8d8MMOsR65Su+yJjIZo7Nzx+ adzHX5V9lTOVNzK6YYyvTFECXt44yAEc70sGyBwbj+Dp61UVwATt0owXfK7lEbXD22LLwmoWkBA uU11RY/lcMFKssilaBgcJkPD3JXQKpcvmq/QyJW623b0uMazCNh1rCqmL4CYbkMDV9Xzh554kS2 sk8HeweA/vyyOhTIxZT+WG2aHbGJ6/0GODcsR27S+8hOoZW05GwodxpsxMrBBbqmvA7omYYDs0C WPEcuLTWfF7NyVG+mvSRUmiPhKamw7RjF4ophZeQjBJIaSICA7GuvsBuNrJvfQv5up1nU8/UO0Z +HY6bwHmcAthN41iz266rvJA8T3GV33e4/DFlWSLSVHAx8noWQ3zP+uKW8yYQ6qjJqUFClZSE9n BGBcMneWduU4VniAUXY5Bj3IgkWIBbHT1Brrz6QUdctciC X-Received: by 2002:a17:90b:55cd:b0:381:e93b:f740 with SMTP id 98e67ed59e1d1-3875595f2c7mr4256887a91.15.1783410558557; Tue, 07 Jul 2026 00:49:18 -0700 (PDT) Received: from buffalo-ssd (M014013071096.v4.enabler.ne.jp. [14.13.71.96]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-387d20a361asm626710a91.15.2026.07.07.00.49.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2026 00:49:18 -0700 (PDT) From: Akari Tsuyukusa To: Michael Turquette , Stephen Boyd , Brian Masney , Matthias Brugger , AngeloGioacchino Del Regno Cc: linux-clk@vger.kernel.org (open list:COMMON CLK FRAMEWORK), linux-kernel@vger.kernel.org (open list:ARM/Mediatek SoC support), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC support), linux-mediatek@lists.infradead.org (moderated list:ARM/Mediatek SoC support), stable@vger.kernel.org, Chen-Yu Tsai , Miles Chen , Akari Tsuyukusa Subject: [PATCH v2 1/6] clk: mediatek: mt2712: fix memory leak on module removal Date: Tue, 7 Jul 2026 16:48:30 +0900 Message-ID: <20260707074839.240676-2-akkun11.open@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260707074839.240676-1-akkun11.open@gmail.com> References: <20260707074839.240676-1-akkun11.open@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260707_004920_017838_7B22F55E X-CRM114-Status: GOOD ( 12.40 ) 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 clk_mt2712_apmixed_probe() in clk-mt2712-apmixedsys.c does not call platform_set_drvdata(), but clk_mt2712_apmixed_remove() callback calls platform_get_drvdata(). This results in platform_get_drvdata() returning NULL, which leads to calling kfree(NULL) in mtk_free_clk_data(NULL). This leaves clk_data unreleased, causing a memory leak. Fix this by calling platform_set_drvdata() during probe. Fixes: c6368ce86435 ("clk: mediatek: mt2712-apmixedsys: Add .remove() callback for module build") Cc: stable@vger.kernel.org Signed-off-by: Akari Tsuyukusa --- drivers/clk/mediatek/clk-mt2712-apmixedsys.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/mediatek/clk-mt2712-apmixedsys.c b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c index 54b18e9f83f8..087cf574bcdc 100644 --- a/drivers/clk/mediatek/clk-mt2712-apmixedsys.c +++ b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c @@ -129,6 +129,8 @@ static int clk_mt2712_apmixed_probe(struct platform_device *pdev) goto unregister_plls; } + platform_set_drvdata(pdev, clk_data); + return 0; unregister_plls: -- 2.54.0