From nobody Fri Sep 25 02:44:22 2026 Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 753F32248B3; Thu, 17 Sep 2026 12:51:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789649492; cv=none; b=kINi0FdVIHILbyQgSnyY2+yMFtqiwZe61KQVSlc7D9VPLGN4ndX/B9cmIMq//AaGN14QsSlwuKzEjZk2lGsJfTIfUReBKVbbkU/ddsScncsRVAmhuOk8BSwX3hYXSlk0brPvosQjPCPOk1xIE6lTXPY7+INKfQQVt4YJaVvYBXI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789649492; c=relaxed/simple; bh=Lrj4RPSSxPTbvdSjXeJTauHCrCiDvBfAkbYNS2Ztjz4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=iCNfcoq3Sr107b22+cdE2Ld7d2ByX29MCkiGx3zXALgDg2t2qu1Wbv184FotOQgcJPD5pSCJvXZlzCwq4jmh4WjesmGqqrI7UJlwzMT0tfpW0emxqiF3XoHhpg6bGq9Y0sFR6FlAFLKlNWKPF4e4ZhNPqd4vK4NcZmW0STqeoGU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from dfae2b116770.home.arpa (unknown [36.110.52.2]) by APP-05 (Coremail) with SMTP id zQCowACH7zk+4qtq1N+ACA--.3070S2; Thu, 17 Sep 2026 20:51:10 +0800 (CST) From: Wentao Liang To: catalin.marinas@arm.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, nsaenz@kernel.org, robh@kernel.org, saravanak@kernel.org, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] of: unittest: Fix np reference leak in of_unittest_dma_get_max_cpu_address() Date: Thu, 17 Sep 2026 12:51:10 +0000 Message-Id: <20260917125110.2152065-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: zQCowACH7zk+4qtq1N+ACA--.3070S2 X-Coremail-Antispam: 1UD129KBjvdXoW7JryxGr1rCw18Xry3tF1kXwb_yoWfuFb_GF 9ru3sxGFW8CF1UWw1fXryfZFnFya4UXrW8Wr1jvr9IkryavF17Jr1S9rn5Jw15Zw4a9F9r Kw1Du340krnrXjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbS8YjsxI4VWDJwAYFVCjjxCrM7CY07I20VC2zVCF04k26cxKx2IY s7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4 kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_ Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26r xl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj 6xIIjxv20xvE14v26r1q6rW5McIj6I8E87Iv67AKxVW8Jr0_Cr1UMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VAI37AI020EjII2zVCS5cI20VAGYxC7MxkF 7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_Gr43Wr 1UJr1l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAI w20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr1j6F4UJwCI42IY6I8E87Iv6x kF7I0E14v26rxl6s0DYxBIdaVFxhVjvjDU0xZFpf9x07jngAwUUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiDAENA2qrrJqljQAAsc Content-Type: text/plain; charset="utf-8" of_find_node_by_path() returns a node with an elevated reference count, but the function never drops it. Add the missing of_node_put() before returning so that the reference is not leaked. Fixes: 07d13a1d6120 ("of: unittest: Add test for of_dma_get_max_cpu_address= ()") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang --- drivers/of/unittest.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 5259c45e355d..d1a88a043300 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -1110,6 +1110,8 @@ static void __init of_unittest_dma_get_max_cpu_addres= s(void) unittest(cpu_addr =3D=3D 0x4fffffff, "of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n", &cpu_addr, 0x4fffffff); + + of_node_put(np); } =20 static void __init of_unittest_dma_ranges_one(const char *path, --=20 2.34.1