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Mon, 08 Jun 2026 08:34:29 -0700 (PDT) Received: from i4-gl-tmk5904.ad.psu.edu ([130.203.156.186]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ceccdb8dadsm170138786d6.12.2026.06.08.08.34.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jun 2026 08:34:29 -0700 (PDT) From: Yuho Choi To: Daniel Palmer , Romain Perier , Russell King Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yuho Choi Subject: [PATCH v1] ARM: mstar: Drop OF node references after mapping Date: Mon, 8 Jun 2026 11:34:21 -0400 Message-ID: <20260608153421.26910-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" 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 smpctrl and l3bridge registers. Fixes: 312b62b6610c ("ARM: mstar: Add machine for MStar/Sigmastar Armv7 SoC= s") Fixes: 5919eec0f092 ("ARM: mstar: SMP support") Signed-off-by: Yuho Choi --- arch/arm/mach-mstar/mstarv7.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-mstar/mstarv7.c b/arch/arm/mach-mstar/mstarv7.c index 274c4f0df270..64262b8f10a0 100644 --- a/arch/arm/mach-mstar/mstarv7.c +++ b/arch/arm/mach-mstar/mstarv7.c @@ -86,6 +86,7 @@ static int mstarv7_boot_secondary(unsigned int cpu, struc= t task_struct *idle) =20 np =3D of_find_compatible_node(NULL, NULL, "mstar,smpctrl"); smpctrl =3D of_iomap(np, 0); + of_node_put(np); =20 if (!smpctrl) return -ENODEV; @@ -116,6 +117,7 @@ static void __init mstarv7_init(void) =20 np =3D of_find_compatible_node(NULL, NULL, "mstar,l3bridge"); l3bridge =3D of_iomap(np, 0); + of_node_put(np); if (l3bridge) soc_mb =3D mstarv7_mb; else --=20 2.43.0