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 238B9330B00; Fri, 17 Oct 2025 15:54:29 +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=1760716469; cv=none; b=Trd7+TwSTrcFjzyIup8cRWNOeuIYmtifxUQcpylMFuLNHJddIL1jkchPdQqXcKWjAm4P78Dpl97f2ytsLjE6utzEyzgm0ZZz/lxutuIf6TeN2YZnfiST7vW0EvO1pLQ5JrbamW0ytbpuPMIw8jlL1D7OnjuR+R22vd0Nk0/SZlE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760716469; c=relaxed/simple; bh=T1EyJ+iEYDRszEU4RT0XMuYCnGds6OTmMhW4i2zYozE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ghpZMDzRhyLxa3971eb3Luo1Yvxb3onbLd4hhh4WrFJ40cfulMlbF3qF6l5ugyspiS7yodCvm+jVKlTdHA5YoO4hKpf/r7oQuqXv0GtGoxQJ/iIBH5anGNdBzno7rd9nN0i+dpNqygDi9pUAJIB4AkXDaICw4Jqj462fIHhOR8g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OOGXknH6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OOGXknH6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A175AC4CEE7; Fri, 17 Oct 2025 15:54:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760716469; bh=T1EyJ+iEYDRszEU4RT0XMuYCnGds6OTmMhW4i2zYozE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OOGXknH67AbDJhrjxCFUkp9TatL1/FyJDqZotqtyAwljCmRuAzQimrZZLCX2iutF0 uDcCS5SyCjOVJpR4qg038dBATxxlng2d9n8RiNZJLf9KpA3zRKSYOx6epYlsCYBe8R y43KNjBwsw7EHdUECw7ODM6fiE5G2hAMzBWUupl8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhen Ni , Krzysztof Kozlowski Subject: [PATCH 5.15 201/276] memory: samsung: exynos-srom: Fix of_iomap leak in exynos_srom_probe Date: Fri, 17 Oct 2025 16:54:54 +0200 Message-ID: <20251017145149.806689942@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251017145142.382145055@linuxfoundation.org> References: <20251017145142.382145055@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Zhen Ni commit 6744085079e785dae5f7a2239456135407c58b25 upstream. The of_platform_populate() call at the end of the function has a possible failure path, causing a resource leak. Replace of_iomap() with devm_platform_ioremap_resource() to ensure automatic cleanup of srom->reg_base. This issue was detected by smatch static analysis: drivers/memory/samsung/exynos-srom.c:155 exynos_srom_probe()warn: 'srom->reg_base' from of_iomap() not released on lines: 155. Fixes: 8ac2266d8831 ("memory: samsung: exynos-srom: Add support for bank configuration") Cc: stable@vger.kernel.org Signed-off-by: Zhen Ni Link: https://lore.kernel.org/r/20250806025538.306593-1-zhen.ni@easystack.cn Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- drivers/memory/samsung/exynos-srom.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) --- a/drivers/memory/samsung/exynos-srom.c +++ b/drivers/memory/samsung/exynos-srom.c @@ -121,20 +121,18 @@ static int exynos_srom_probe(struct plat return -ENOMEM; srom->dev = dev; - srom->reg_base = of_iomap(np, 0); - if (!srom->reg_base) { + srom->reg_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(srom->reg_base)) { dev_err(&pdev->dev, "iomap of exynos srom controller failed\n"); - return -ENOMEM; + return PTR_ERR(srom->reg_base); } platform_set_drvdata(pdev, srom); srom->reg_offset = exynos_srom_alloc_reg_dump(exynos_srom_offsets, ARRAY_SIZE(exynos_srom_offsets)); - if (!srom->reg_offset) { - iounmap(srom->reg_base); + if (!srom->reg_offset) return -ENOMEM; - } for_each_child_of_node(np, child) { if (exynos_srom_configure_bank(srom, child)) {