From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 14D9E3B9D9D; Tue, 21 Jul 2026 22:05:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671544; cv=none; b=VKGoKAuwvjZvIAksAgVul04bEzr4g24USo+U4VciDvmdaLUiL2YO94RIpTiqBJx70WFQ8hpmunPXnDdu5EbAlm5VGpX3qBb45M/FTaA1wd2Sa8Tvi91sraZ6pJkHs0HKbaxDWD6ZQDJHL20gZpzoygmpT1A5+glzFp/4ibuZ6gw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671544; c=relaxed/simple; bh=O4bS6txSrU5wBC9JrzCFqH7a+g1bXityqzNlzbOxBeg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MMpZJ+vGSoJFxKSNyQhjfsjAL/FkpFpqta+ySAvf1tfUml9k5xsXLwqF0hpyxy75CzGhBOAK7L+4Z3m+KK3q6p6bX5kri0AgvSx+CJH8AP7FIhf//ZOSZzgn4bbr2+BNzem25QYFeBOlakRlxaewiMEc7h09TmGmc4PRRIr8y3Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JM45tQh9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="JM45tQh9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B25A1F000E9; Tue, 21 Jul 2026 22:05:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784671543; bh=HD2lI7pVw7FpmpVr+Ad5MiViZTEWcqIm7gdidboDM+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JM45tQh9LPj3vn8R9G7y89XVEF/wqR+OKzdSkOLzMHgMR0VeNjwPrXXAolUEmIjXo e50DpkYORFUC0dmw5SouBFjN67WqlJNjh7Ip+Qu4NnOhwz4wdMlQD/rmMgHa34CNdE eBkg9hBT6nUCy3kPe9/lJAhsHiU6BDU/pIfgtBWk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuho Choi , Frank Li , Sasha Levin Subject: [PATCH 5.15 286/843] ARM: imx3: Fix CCM node reference leak Date: Tue, 21 Jul 2026 17:18:41 +0200 Message-ID: <20260721152412.463013533@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yuho Choi [ Upstream commit 36d46348eb5fc4bc505cd2290ddd70c25fbe6bb3 ] of_find_compatible_node() returns a referenced device node. The i.MX31 and i.MX35 early init paths use the node to map the CCM registers with of_iomap(), but never drop the node reference. Release the node after the mapping is created. Fixes: 2cf98d12958c ("ARM: imx3: Retrieve the CCM base address from devicetree") Signed-off-by: Yuho Choi Signed-off-by: Frank Li Signed-off-by: Sasha Levin --- arch/arm/mach-imx/mm-imx3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 28db97289ee8ff..d333a8fdb7319a 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -107,6 +107,7 @@ void __init imx31_init_early(void) arm_pm_idle = imx31_idle; np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm"); mx3_ccm_base = of_iomap(np, 0); + of_node_put(np); BUG_ON(!mx3_ccm_base); } #endif /* ifdef CONFIG_SOC_IMX31 */ @@ -144,6 +145,7 @@ void __init imx35_init_early(void) arch_ioremap_caller = imx3_ioremap_caller; np = of_find_compatible_node(NULL, NULL, "fsl,imx35-ccm"); mx3_ccm_base = of_iomap(np, 0); + of_node_put(np); BUG_ON(!mx3_ccm_base); } #endif /* ifdef CONFIG_SOC_IMX35 */ -- 2.53.0