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irqchip/loongson-pch-pic: Fix registration of syscore_ops

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When support suspend/resume for loongson-pch-pic, the syscore_ops
is registered twice in dual-bridges machines where there are two
pch-pic IRQ domains. Repeated registration of an same syscore_ops
broke syscore_ops_list, so the patch will corret it.

Fixes: 1ed008a2c3 ("irqchip/loongson-pch-pic: Add suspend/resume support")
Cc: stable@vger.kernel.org
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230407083453.6305-5-lvjianmin@loongson.cn
This commit is contained in:
Jianmin Lv 2023-04-07 16:34:52 +08:00 committed by Marc Zyngier
parent bdd60211ee
commit c84efbba46
1 changed files with 2 additions and 1 deletions
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3
drivers/irqchip/irq-loongson-pch-pic.c
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@ -311,7 +311,8 @@ static int pch_pic_init(phys_addr_t addr, unsigned long size, int vec_base,
pch_pic_handle[nr_pics] = domain_handle;
pch_pic_priv[nr_pics++] = priv;
register_syscore_ops(&pch_pic_syscore_ops);
if (nr_pics == 1)
register_syscore_ops(&pch_pic_syscore_ops);
return 0;