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Mon, 08 Jun 2026 08:47:02 -0700 (PDT) Received: from i4-gl-tmk5904.ad.psu.edu ([130.203.156.186]) by smtp.gmail.com with ESMTPSA id af79cd13be357-9158a238f8esm1792846285a.15.2026.06.08.08.47.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jun 2026 08:47:02 -0700 (PDT) From: Yuho Choi To: =?UTF-8?q?Andreas=20F=C3=A4rber?= , Manivannan Sadhasivam , Russell King Cc: linux-arm-kernel@lists.infradead.org, linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org, Yuho Choi Subject: [PATCH v1] ARM: actions: Drop OF node references after mapping Date: Mon, 8 Jun 2026 11:46:58 -0400 Message-ID: <20260608154659.37726-1-dbgh9129@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit of_find_compatible_node() returns a device node with its reference count incremented. of_iomap() uses the node to map the register range, but does not consume that reference. Drop the node references after mapping the timer, SPS and SCU registers in s500_smp_prepare_cpus(). Fixes: 172067e0bc87 ("ARM: owl: Implement CPU enable-method for S500") Fixes: b6a0e18ca690 ("ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3") Signed-off-by: Yuho Choi --- arch/arm/mach-actions/platsmp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-actions/platsmp.c b/arch/arm/mach-actions/platsmp.c index 7b208e96fbb6..a0d0c1621bd0 100644 --- a/arch/arm/mach-actions/platsmp.c +++ b/arch/arm/mach-actions/platsmp.c @@ -105,6 +105,7 @@ static void __init s500_smp_prepare_cpus(unsigned int max_cpus) } timer_base_addr = of_iomap(node, 0); + of_node_put(node); if (!timer_base_addr) { pr_err("%s: could not map timer registers\n", __func__); return; @@ -117,6 +118,7 @@ static void __init s500_smp_prepare_cpus(unsigned int max_cpus) } sps_base_addr = of_iomap(node, 0); + of_node_put(node); if (!sps_base_addr) { pr_err("%s: could not map sps registers\n", __func__); return; @@ -130,6 +132,7 @@ static void __init s500_smp_prepare_cpus(unsigned int max_cpus) } scu_base_addr = of_iomap(node, 0); + of_node_put(node); if (!scu_base_addr) { pr_err("%s: could not map scu registers\n", __func__); return; -- 2.43.0