[PATCH v1] ARM: mstar: Drop OF node references after mapping
최유호
dbgh9129 at gmail.com
Thu Jul 2 14:11:11 PDT 2026
Hi,
Just a gentle ping on this patch.
I would appreciate any feedback when you have a chance to review this.
Thanks
On Mon, 8 Jun 2026 at 11:34, Yuho Choi <dbgh9129 at gmail.com> wrote:
>
> 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 SoCs")
> Fixes: 5919eec0f092 ("ARM: mstar: SMP support")
> Signed-off-by: Yuho Choi <dbgh9129 at gmail.com>
> ---
> 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, struct task_struct *idle)
>
> np = of_find_compatible_node(NULL, NULL, "mstar,smpctrl");
> smpctrl = of_iomap(np, 0);
> + of_node_put(np);
>
> if (!smpctrl)
> return -ENODEV;
> @@ -116,6 +117,7 @@ static void __init mstarv7_init(void)
>
> np = of_find_compatible_node(NULL, NULL, "mstar,l3bridge");
> l3bridge = of_iomap(np, 0);
> + of_node_put(np);
> if (l3bridge)
> soc_mb = mstarv7_mb;
> else
> --
> 2.43.0
>
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