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| author | Jianmin Lv <lvjianmin@loongson.cn> | 2023-04-07 11:34:52 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2023-04-08 13:29:18 +0300 |
| commit | c84efbba46901b187994558ee0edb15f7076c9a7 (patch) | |
| tree | 01c96a15469fde6f6ef4c009df7387099c6008f8 /drivers/irqchip | |
| parent | bdd60211eebb43ba1c4c14704965f4d4b628b931 (diff) | |
| download | linux-c84efbba46901b187994558ee0edb15f7076c9a7.tar.xz | |
irqchip/loongson-pch-pic: Fix registration of syscore_ops
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: 1ed008a2c331 ("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
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-pch-pic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c index 437f1af693d0..64fa67d4ee7a 100644 --- a/drivers/irqchip/irq-loongson-pch-pic.c +++ b/drivers/irqchip/irq-loongson-pch-pic.c @@ -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; |