[PATCH v3 1/5] lib: utils/irqchip: plic: Fix the off-by-one error in priority save/restore helpers

[Andreas Schwab]

On Dez 11 2022, Bin Meng wrote:

> On Sun, Dec 11, 2022 at 6:08 PM Andreas Schwab <schwab at linux-m68k.org> wrote:
>>
>> On Dez 11 2022, Bin Meng wrote:
>>
>> > diff --git a/lib/utils/irqchip/plic.c b/lib/utils/irqchip/plic.c
>> > index 73d7788..4df9020 100644
>> > --- a/lib/utils/irqchip/plic.c
>> > +++ b/lib/utils/irqchip/plic.c
>> > @@ -38,13 +38,13 @@ static void plic_set_priority(const struct plic_data *plic, u32 source, u32 val)
>> >
>> >  void plic_priority_save(const struct plic_data *plic, u8 *priority)
>> >  {
>> > -     for (u32 i = 0; i < plic->num_src; i++)
>> > +     for (u32 i = 1; i <= plic->num_src; i++)
>> >               priority[i] = plic_get_priority(plic, i);
>>
>> That needs to adjust the index into the priority array.
>
> Does that help anything?

Yes, it fixes an off-by-one error.

-- 
Andreas Schwab, schwab at linux-m68k.org
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