From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90C9319CD19; Sun, 1 Mar 2026 01:31:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772328668; cv=none; b=j1Ma1Ma/j3VtquRpUqEEEbnJAruAYdjUQ+ls2cmpqNgV6DxVqNvxEgYUxi0Y6khefG58C8g2wonsSRJsEGRsYs8mqx0UJbVIQ74gqNP1Xp4I2r/T+R8RAmvMdNbKkpVYFrNjWLJ6l8Qu1rgGBWssFvp2F3K09WN8vtp4uu8x4O8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772328668; c=relaxed/simple; bh=XDkG6B7bK/eu/nQ1Z2Gbh1MDzgZ1mQuq99ntnQ9A1TY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=LZOB8lZ/iW2YNWR5FhN5e23le2dqAqRmC7JN1Q4qXlVxIoCsJT9LuQz30mvmSTD/kOL+hKTzFDVaMIy/5tLsh9yacsvPPYHWDdMqyQAthzNQBIjml/d8OE3EcXAwHiiynhHb+72RVqyhYqca7xkLS9EcQPvzYFlwVGKnUstEEnk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VLy8k4rP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VLy8k4rP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C7D69C19421; Sun, 1 Mar 2026 01:31:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772328668; bh=XDkG6B7bK/eu/nQ1Z2Gbh1MDzgZ1mQuq99ntnQ9A1TY=; h=From:To:Cc:Subject:Date:From; b=VLy8k4rPH4l3FW7GqtWkBnxT8nwNO58O2UxoQgpFIvVl3lgWEwCgGpyjfQCDOQk3c nxmHu/314mVxnaCMmW+bgNpLIeXaamCtbOc83GiOicI3HbzdTot47rVrtPb0PyGAk8 QZvEI/Vfdwgyq080rR981Pk7lrLGhjwdMTSjPzt/Jc9+Vvubs4q/rEXNPx0h78S/bu UzFBl7y22y664IYJ1dLjmem9tvzJKm1SU08rWNubzUVhL0s+UszjpPlAv4AbQj6Kxd A1a0ZhmdKli8Fzl7SbyjOYbg+72YZQsE87hfwqAcNSdHC/F6V10aCv8on5u3sHj0id Bi527Lw34Ng5A== From: Sasha Levin To: stable@vger.kernel.org, vulab@iscas.ac.cn Cc: Andreas Kemnade , Kevin Hilman , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: FAILED: Patch "ARM: omap2: Fix reference count leaks in omap_control_init()" failed to apply to 6.6-stable tree Date: Sat, 28 Feb 2026 20:31:06 -0500 Message-ID: <20260301013106.1689495-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 93a04ab480c8bbcb7d9004be139c538c8a0c1bc8 Mon Sep 17 00:00:00 2001 From: Wentao Liang Date: Wed, 17 Dec 2025 14:21:22 +0000 Subject: [PATCH] ARM: omap2: Fix reference count leaks in omap_control_init() The of_get_child_by_name() function increments the reference count of child nodes, causing multiple reference leaks in omap_control_init(): 1. scm_conf node never released in normal/error paths 2. clocks node leak when checking existence 3. Missing scm_conf release before np in error paths Fix these leaks by adding proper of_node_put() calls and separate error handling. Fixes: e5b635742e98 ("ARM: OMAP2+: control: add syscon support for register accesses") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang Reviewed-by: Andreas Kemnade Link: https://patch.msgid.link/20251217142122.1861292-1-vulab@iscas.ac.cn Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 79860b23030de..eb6fc7c61b6e0 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -732,7 +732,7 @@ int __init omap2_control_base_init(void) */ int __init omap_control_init(void) { - struct device_node *np, *scm_conf; + struct device_node *np, *scm_conf, *clocks_node; const struct of_device_id *match; const struct omap_prcm_init_data *data; int ret; @@ -753,16 +753,19 @@ int __init omap_control_init(void) if (IS_ERR(syscon)) { ret = PTR_ERR(syscon); - goto of_node_put; + goto err_put_scm_conf; } - if (of_get_child_by_name(scm_conf, "clocks")) { + clocks_node = of_get_child_by_name(scm_conf, "clocks"); + if (clocks_node) { + of_node_put(clocks_node); ret = omap2_clk_provider_init(scm_conf, data->index, syscon, NULL); if (ret) - goto of_node_put; + goto err_put_scm_conf; } + of_node_put(scm_conf); } else { /* No scm_conf found, direct access */ ret = omap2_clk_provider_init(np, data->index, NULL, @@ -780,6 +783,9 @@ int __init omap_control_init(void) return 0; +err_put_scm_conf: + if (scm_conf) + of_node_put(scm_conf); of_node_put: of_node_put(np); return ret; -- 2.51.0